Polynucleotides encoding phosphatidylinositol 3-kinases

ABSTRACT

The present invention generally provides nucleic acids and polypeptides that are phosphatidylinositol 3-kinases, also known as 1-phosphatidylinositol 3-kinases. The nuclecic acids and polypeptides disclosed are derived from Drosophila and mouse. These polypeptides are generally involved in cell signaling cascades which control, e.g., cell cycle progression and intracellular protein sorting. The family of PI3-kinases from which the polypeptides of the invention are derived are generally characterized by their structure as well as their unique substrate specificity.

This application is a division of and claims the benefit of U.S. application Ser. No. 08/609,049, filed Feb. 12, 1996, now U.S. Pat. No. 5,948,664 the disclosure of which is incorporated by reference in its entirety for all purposes.

BACKGROUND OF THE INVENTION

Phosphatidyl Inositol kinases (“PtdIns-kinases”) regulate diverse cellular processes including cell signaling, cell cycle progression, and intracellular protein sorting. See, e.g., Herman et al., Nature 358:157-159 (1992), Kapellar et al., Bioessays 16:565-576 (1994), Stephens et al., Nature 351:33-39 (1991) and Kunz et al., Cell 73:585-596 (1993). PtdIns-kinases phosphorylate phosphoinositol lipids at distinct positions on the inositol ring. For example, PtdIns 3-kinases, or “PI 3-kinases”, phosphorylate the D3 hydroxyl group on the inositol ring, while PtdIns 4-kinases phosphorylate the D4 hydroxyl group. All of the PtdIns kinases that have been identified to date have been found to contain a core region of sequence similarity, which, without being bound to any particular theory, is believed to be the catalytic domain. This domain, termed the “PtdIns kinase domain”, shares limited sequence similarity with the catalytic domain of protein kinases and mutation of conserved residues results in loss of PtdIns kinase activity. See, Carter et al., J. Biochem. 301:415-420 (1994), Dhand et al., EMBO J. 13:522-533 (1994) and Schu et al., Science 260:88-91 (1993).

A number of receptor tyrosine kinases, src-like tyrosine kinases and viral oncoproteins bind and activate one particular cellular PtdIns 3-kinase. Studies of mutants that abrogate the binding of this PtdIns 3-kinase to these molecules indicate that PtdIns 3-kinases mediate mitogenic and cell motility responses of cells to growth factors and oncoproteins. Purification of the polypeptide subunits of this PtdIns 3-kinase reveal that the enzyme exists as a heterodimeric complex composed of a 110 Kd and an 85 Kd subunit. Carpenter et al., J. Biol. Chem. 265:19704-19711 (1990), Fry et al., Biochem. J. 288:383-393 (1992), Morgan et al., Eur. J. Biochem. 191:761-767 (1990), Shibasaki et al., J. Biol. Chem. 266:8108-8114 (1991). The 110 Kd subunit contains a C-terminal PtdIns kinase domain, as well as a small domain at its N-terminus that is sufficient for binding to the 85-Kd subunit (Hiles et al., Cell 70:419-429 (1992), Holt et al., Mol. Cell. Biol. 14:42-49 (1994), Klippel et al., Mol. Cell. Biol. 14:2675-2685 (1994). The 85 Kd subunit serves as an adapter and binds activated growth factor receptors and other tyrosine phosphorylated molecules through two Src homology 2 (SH2) domains. Hu et al., Mol. Cell. Biol. 12:981-990 (1992), McGlade et al., Mol. Cell. Biol. 12:991-997 (1992) Reedijk et al., EMBO J. 11:1365-1372 (1992), Yoakim, J. Virol. 66:5485-5491 (1992), Yonezawa et al., J. Biol. Chem. 267:25958-25966 (1992). The association of the enzyme with activated growth factor receptors is believed to localize it to the plasma membrane where its phospholipid substrates reside.

The p110/p85 complex phosphorylates distinct lipids in vitro and in vivo. In vitro, the p110/p85 complex can phosphorylate phosphatidylinositol (PtdIns), phosphatidylinositol 4-phosphate (PtdIns4P) and phophatidylinositol 4,5-bisphosphate (PtdIns(4,5)P₂) on the D3 hydroxyl group of the inositol ring, producing phosphatidylinositol 3-phosphate (PtdIns3P), phosphatidylinositol 3,4-bisphosphate (PtdIns(3,4)P₂) and phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P₃). Kapellar et al., Bioessays 16:565-576 (1994), Stephens et al., Biochim. Biophys. Acta 1179:27-75 (1993). Activation of the p110/p85 complex in cells results in elevated levels of PtdIns(3,4)P₂ and PtdIns(3,4,5)P₃, but not PtdIns3P. Auger et al., Cell 57:167-175 (1989), Stephens et al., Nature 351:33-39 (1991), Traynor-Kaplan et al., Nature 334:353-356 (1988), Traynor-Kaplan J. Biol. Chem. 264:15668-15673 (1989). Studies of the pathways in cells that generate these lipids suggest that PtdIns(3,4)P₂ is formed by the dephosphorylation of PtdIns(3,4,5)P₃ by a PtdIns 5-phosphatase rather than the phosphorylation of PtdIns4P by a PtdIns 3-kinase. Carter et al., Biochem. J. 301:415-420 (1994), Hawkins et al., Nature 358:157-159 (1992).

The stimulation of cells with growth factors or tumor antigens results in a rapid increase in the cellular concentration of PtdIns(3,4)P₂ and PtdIns(3,4,5)P₃ from a low basal level, indicating that these molecules represent novel second messengers in growth factor activated signaling cascades.

Additionally, several protein kinases have recently been described which appear to represent downstream effectors of the lipid products of PtdIns 3-kinases. The Akt protein kinase can be activated in vivo by treating cells with the mitogen PDGF. The binding of PtdIns 3-kinase to the PDGF receptor is essential for Akt activation (Franke et al., Cell 81:727-736 (1995)). Akt can be directly activated in vitro with PtdIns3P. In addition to Akt, particular isoforms of protein kinase C can be activated by the lipid products of PtdIns 3-kinases. Protein kinase C isoforms δ, ε, η, and ζ can be activated in vitro with PtdIns(3,4)P₂ or PtdIns(3,4,5)P₃, but not with PtdIns3P. Nakanishi et al., J. Biol. Chem. 268:13-16 (1993), Toker et al., J. Biol. Chem 269:32358-32367 (1994).

PtdIns 3-kinases have also been implicated in the regulation of intracellular protein sorting. For example, the Vps34 PtdIns 3-kinase was initially identified from a Saccharomyces cerevisiae mutant that was defective in the trafficking of proteins to the lysosome-like vacuole. Herman et al., Mol. Cell. Biol. 10:6742-6754 (1990). Vps34 can phosphorylate PtdIns, but not PtdIns4P or PtdIns(4,5)P₂ in vitro, which is consistent with absence of detectable PtdIns(3,4,5)P₃ in yeast. Schu et al., Science 260:89-91 (1993). Vps34 is the major PtdIns 3-kinase in yeast. VPS34 mutant strains contain no detectable PtdIns3P.

Because disregulation of the cellular processes, such as signaling processes involved in cell cycle progression and intracellular protein sorting, can have disastrous effects, it is important to understand and gain control over these processes. This requires identifying the participants in the signaling events involved in these processes and elucidating their mechanism of function. The identification of these participants is important for a wide range of diagnostic, therapeutic and screening applications. In particular, by knowing the structure and function of a particular participant in a signaling cascade, one can design compounds which affect that cascade, to either activate an otherwise inactive pathway, or inactivate an overly active pathway. Similarly, having identified a particular participant in a signaling cascade, one can also identify situations where that cascade is defective, resulting in a particular pathological state.

PI3-kinases have been identified as playing critical roles in several distinct cellular signaling processes. As a result, it is of particular interest to identify these kinases, their substrates, products and effectors. Once identified, these various elements can be used for a variety of therapeutic, diagnostic and screening applications. For example, these components may be used as therapeutic agents for treating disorders resulting from anomalies in signaling cascades. Alternatively, these components may be used alone or in combination, as model systems for screening compounds that affect signaling cascades. Finally, identification of these components leads to an understanding of the cell signaling processes, anomalies in these processes which are responsible for certain disorders, and by implication, diagnostic systems for identifying these disorders. The present invention meets these and many other needs.

SUMMARY OF THE INVENTION

The present invention generally provides novel PI3-kinase polypeptides, nucleic acids encoding these polypeptides, antibodies that are specifically immunoreactive with these polypeptides and methods of using these polypeptides in screening and therapeutic applications.

In one aspect, the present invention provides substantially pure PI3-kinase polypeptides or biologically active fragments thereof. These polypeptides are generally characterized by their ability to phosphorylate the D3 hydroxyl of an inositol ring in PtdIns and PtdIns4P but not PtdIns(4,5)P₂. The polypeptides may further include a C2 domain within their structure. In a more specific aspect, the polypeptides of the invention have an amino acid sequence that is substantially homologous to the sequence of cpk and cpk-m, as shown in FIG. 1 (SEQ ID NOS:12-13), or biologically active fragments thereof.

The polypeptides may, in some aspects, be characterized by their ability to block the interaction between a cpk or cpk-m polypeptide and an antibody that is specifically immunoreactive with cpk or cpk-m. Similarly, the polypeptides may be characterized by their ability to block the interaction between a cpk and/or cpk-m polypeptide and its substrate, such as PtdIns or PtdIns4P.

In another aspect, the present invention provides nucleic acids that encode the polypeptides of the invention. In particular, the nucleic acids of the present invention will typically encode polypeptides which possess the above-described substrate specificity, or biologically active fragments. In a more specific aspect, the nucleic acids of the present invention will have a nucleic acid sequence that is substantially homologous to the nucleic acid sequence for cpk or cpk-m, as shown in FIG. 9 (SEQ ID NOS:27-28). In a related aspect, the present invention provides nucleic acid probes that have at least 15 contiguous nucleotides from the cpk or cpk-m nucleic acid sequences. The present invention also provides expression vectors containing the nucleic acids of the invention, and recombinant host cells that are capable of expressing these nucleic acids.

In a further aspect, the present invention provides methods of using the polypeptides of the present invention. In particular, the present invention provides a method of screening test compounds to identify agonists or antagonists of PI3-kinases and the signalling pathways they control. The methods comprise incubating a mixture of PtdIns or PtdIns4P and a polypeptide selected from the group consisting of cpk, cpk-m or biologically active fragments thereof, in the presence and absence of the test compound. The mixture is assayed to determine the amount of PtdIns3P or PtdIns(3,4)P₂ produced in the presence and absence of the test compound. The amount of PtdIns3P or PtdIns(3,4)P₂ produced in the presence of the test compound is compared to the amount of PtdIns3P or PtdIns(3,4)P₂ produced in the absence of the test compound. An increase or decrease in the amount of PtdIns3P or PtdIns(3,4)P₂ in the presence of the test compound is indicative that the test compound is an agonist or antagonist of a PI3-kinase activity, respectively.

The present invention also provides therapeutic methods for treating a symptom of a disorder caused by the dysregulation of a growth factor activation signaling cascade. These methods generally comprise administering to a patient suffering from the disorder, a therapeutically effective amount of a polypeptide or blocking antibody of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a comparison of the amino acid sequences of the Drosophila and murine cpk proteins (SEQ ID NOS:12-13)respectively. Both conserved and identical residues are shaded. The following groups of amino acids were considered to be conserved: A, V, L, I, M; D, E; K, R; N, Q; F, Y; S, T. The amino acid numbers are indicated to the right of the sequence.

FIGS. 2A, 2B and 2C show the domain structure of the cpk proteins. FIG. 2A shows a schematic ribbon diagram comparing the domain structures of cpk with p110, Tor2, Pik1 and Vps34 PtdIns kinases. The PtdIns kinase domains are depicted in black, a region in which cpk and plo are related is depicted with stripes, and the C2 domain and p85 binding domains are indicated. FIG. 2B shows a comparison of the amino acid sequence of the C2 domains in Drosophila and murine cpk (SEQ ID NOS:14-18) with the C2 domains in rabphilin (“rab”) (SEQ ID NO:16), synaptotagmin II (“syt II”) (SEQ ID NO:17), and protein kinase C (“pkc”) (SEQ ID NO:18). Both conserved and identical residues are shaded. FIG. 2C shows a comparison of the amino acid sequences of a part of the catalytic domains of cpk (SEQ ID NO:19) and cpk-m (SEQ ID NO:20) with the catalytic domains of p110α (SEQ ID NO:20), p110β (SEQ ID NO:22), p110γ (SEQ ID NO:23), Vps34 (SEQ ID NO:24), Pik1 (SEQ ID NO:25) and Tor2 (SEQ ID NO:26). Only identical amino acids are indicated, i.e., shaded/boxed. The amino acid numbers are indicated to the right of the sequence.

FIGS. 3A and 3B illustrate the detection of cpk protein in lysates prepared from Drosophila embryos. FIG. 3A is an immunoblot of lysates (30 μg) prepared from 0-12 hr Drosophila embryos probed with α-cpk polyclonal serum. FIG. 3B illustrates the precipitation of cpk protein from embryo lysates. Lysates were precipitated with α-cpk preimmune (lane 1), α-cpk immune (lane 2), α-P6 preimmune (lane 3), and α-P6 immune sera (lane 4). Preimmune and immune sera are indicated by P and I, respectively.

FIG. 4 shows an immunoblot of cpk protein immunoprecipitated from Drosophila lysates and probed with α-phosphotyrosine. Drosophila lysates were precipitated using α-cpk preimmune (lane 1), α-cpk immune (lane 2), α-P6 preimmune (lane 3) or α-P6 immune sera (lane 4).

FIGS. 5A and 5B show the precipitation of proteins from Drosophila lysates using α-cpk serum and α-P6 serum. FIG. 5A is an immunoblot of lysates prepared from 0-12 hr Drosophila embryos precipitated with α-cpk preimmune serum (lane 1), α-cpk immune serum (lane 2), α-P6 preimmune serum (lane 4), or α-P6 immune serum (lane 5). Precipitates were divided in half and half was assayed for PI 3-kinase activity by thin layer chromatography (left panel). Lysates were also precipitated with α-cpk serum which had been preincubated with cpk protein (lane 3) or α-P6 serum which had been preincubated with the P6 peptide (lane 6). FIG. 5B is a blot and TLC (left) showing wild-type (lane 1) and kinase deficient (lane 2) cpk proteins which had been tagged with an HA epitope were expressed in COS-7 cells. P and I indicate preimmune and immune sera, respectively. I^(c) represents either α-cpk or α-P6 sera which had been preincubated for 10 min. with 0.5 μg of competitor (cpk and P6, respectively).

FIGS. 6A and 6B show the results of thin layer chromatography of the products of cpk protein activity on PtdIns substrate. The cpk was precipitated from Drosophila (FIG. 6A) and COS-7 cells (FIG. 6B) using α-cpk or α-HA serum, respectively. The cpk reaction products (lane 3) migrated at approximately the same position as a [γ³²P]-PtdIns3P standard (lane 2), but not a [γ³²P]-PtdIns4P standard (lane 1). Cpk reaction products were also mixed with either [γ³²P]-PtdIns3P (lane 5) or [γ³²P]-PtdIns4P (lane 4) standards and the mixtures were separated. The cpk reaction products comigrated with [γ³²P]-PtdIns3P (lane 5). The cpk reaction products are designated by cpk-p.

FIG. 7 is a thin layer chromatograph showing phosphorylation of either PtdIns (lane 2), PtdIns4P (lane 4) or PtdIns(4,5)P₂ (lane 6) using cpk protein precipitated from Drosophila embryo lysates. A consitutively active p110 protein (p110*) capable of phosphorylating PtdIns (lane 1), PtdIns4P (lane 3) and PtdIns(4,5)P₂ (lane 5) substrates was used as a control. PIP, PIP₂ and PIP₃ refer to phosphatidylinositol phosphate, phosphatidylinositol bisphosphate, and phosphatidylinositol trisphosphate, respectively.

FIGS. 8A, 8B and 8C show the coprecipitation of two protein components with cpk, from Drosophila lysates. FIG. 8A shows an immunoblot of lysates (30 μg) prepared from 0-12 hr Drosophila embryos and probed with α-cpk.m1 serum. FIG. 8B shows the visualization of 90 Kd and 190 Kd proteins which were coprecipitated with cpk. Drosophila lysates were precipitated with Protein A beads alone (1) or beads upon which α-cpk.m1 had previously been immobilized (2). FIG. 8C shows a blot probed with α-phosphotyrosine showing that both cpk and the 190 Kd protein may be tyrosine phosphorylated.

FIG. 9 shows the nucleic acid sequence and deduced amino acid sequence of cpk (SEQ ID NOS:27-28 respectively).

FIG. 10 shows the nucleic acid sequence (SEQ ID NO:29) and deduced amino acid sequences of cpk-m (SEQ ID NOS:30-32).

DESCRIPTION OF THE PREFERRED EMBODIMENT

I. Abbreviations

The various embodiments of the present invention may be described with reference to certain abbreviations. Several of the most commonly used abbreviations are as follows:

PtdIns PhosphatidylInositol PtdIns-4P PhosphatidylInositol 4-phosphate PtdIns(4,5)P₂ PhosphatidylInositol 4,5-bisphosphate PtdIns-Kinase PhosphatidylInositol kinase (also referred to as PI-kinase) PI3-kinase PhosphatidylInositol 3-kinase

II. General Description

The present invention generally provides polypeptides that are related to and/or derived from the family of PI3-kinases. These polypeptides are generally involved in cell signaling cascades which control various cellular processes including cell cycle progression and intracellular protein sorting. The family of PI3-kinases from which the polypeptides of the invention are derived are generally characterized by their structure as well as their unique substrate specificity.

The present invention also provides nucleic acids encoding the above-described PI3-kinase polypeptides, antibodies that are capable of interacting with these polypeptides and methods of utilizing these polypeptides in screening systems for identification of agonists or antagonists of cell signaling pathways, generally, and PtdIns phosphorylation, specifically.

III. Proteins and Polypeptides of the Invention

In a first aspect, the present invention provides isolated, or substantially pure polypeptides that are derived from the family of PI3-kinases. The terms “substantially pure” or “isolated”, when referring to proteins and polypeptides, denote those polypeptides that are separated from proteins or other contaminants with which they are naturally associated. A protein or polypeptide is considered substantially pure when that protein makes up greater than about 50% of the total protein content of the composition containing that protein, and typically, greater than about 60% of the total protein content. More typically, a substantially pure or isolated protein or polypeptide will make up from about 75 to about 90% of the total protein. Preferably, the protein will make up greater than about 90%, and more preferably, greater than about 95% of the total protein in the composition.

The polypeptides of the present invention are typically derived from PI3-kinases that include a C2 domain within their structure. A C2 domain is generally characterized by its structure, e.g., its homology to similar domains in other proteins, is generally believed to mediate binding to phospholipids or other proteins. The PI3-kinases from which the polypeptides of the present invention are derived may be further characterized by their substrate specificity. In particular, the PI3-kinases from which the polypeptides of the present invention are derived have PI3-kinase activity and are capable of phosphorylating the D3 hydroxyl group on the inositol ring of PtdIns and PtdIns4P, but not PtdIns(4,5)P₂.

The polypeptides may be further characterized by their relation to a PtdIns 3-kinase isolated from Drosophila melanogaster. This Drosophila PI3-kinase contains a C2 domain and is therefore generally referred to herein as “cpk” for C2 containing PtdIns kinase. The cpk gene represents the first PI3-kinase identified from Drosophila. Additional preferred polypeptides are characterized by their relation to a similar PI3-kinase identified from murine sources, termed cpk-m, which contains a C2 domain and shares extensive sequence identity with cpk. The cpk and cpk-m polypeptides represent a new class of PtdIns 3-kinases. The deduced amino acid sequences for the cpk and cpk-m kinases are shown in FIG. 1.

Analysis of the sequence of the Drosophila and murine cpk proteins reveals a similarity to the p110 family of PtdIns 3-kinases. The cpk genes are 31% identical and 43% similar to a large central region of p110. This region includes both the PtdIns kinase domain (FIG. 2A, black box) and an adjacent region in which p110and cpk can be distinguished from other PtdIns kinases (striped box). The cpk proteins are also similar to p110 family of PtdIns kinases in the most conserved portion of the catalytic domain (FIG. 2C) (SEQ ID NOS:19-26). In this region, the cpk proteins share approximately 45-50% identity with either p110α, p110β or p110γ. In contrast, the cpk proteins share 35%, 29% and 26% identity in this region with the Vps34, Pik1, and Tor2 PtdIns kinases, respectively.

The cpk proteins differ from p110 at both their N- and C-termini. The N-termini of the cpk and cpk-m proteins do not contain any recognizable domain, i.e., the N-terminal domain of p110 that is responsible for binding to the p85 adapter molecule (Holt et al., Mol. Cell. Biol. 14:42-49 (1994), Klippel et al., Mol. Cell Biol. 14:2675-2685 (1994)). The C-termini of cpk and cpk-m proteins contain a “C2” domain (FIG. 2C). These C2 domains are found in a diverse group of proteins and are believed to mediate binding to phospholipids or other proteins. The C2 domains in the cpk and cpk-m sequences are 52% similar to each other, and approximately 38% similar to C2 domains present in protein kinase C, synaptotagmin and rabphilin (FIG. 2B) (SEQ ID NOS:14-18).

α-cpk immune serum recognizes a polypeptide from Drosophila lysates which migrates at approximately 210 Kd, the predicted molecular weight of the cpk protein (FIG. 3). This 210 Kd polypeptide is not recognized by pre-immune serum. Further studies using antibodies raised against fragments of cpk have confirmed the identity of the 210 kD polypeptide as cpk.

Preferred polypeptides of the present invention will be derived from PI3-kinases having amino acid sequences that are substantially homologous to the amino acid sequences shown in FIG. 1 or biologically active fragments thereof.

The term “biologically active fragment” as used herein, refers to portions of the proteins or polypeptides, which portions possess a particular biological activity. For example, such biological activity may include the ability to bind a particular protein, substrate or ligand, to have antibodies generated against it, to block or otherwise inhibit an interaction between two proteins, between an enzyme and its substrate, between an epitope and an antibody, or may include a particular catalytic activity. With regard to the polypeptides of the present invention, particularly preferred polypeptides or biologically active fragments include, e.g., polypeptides that possess one or more of the biological activities described above, such as the ability to interact with the PI3-kinase substrates described above, e.g., PtdIns and PtdIns4P, or the ability to affect the phosphorylation of those substrates. Fragments possessing this catalytic activity are also termed “catalytically active fragments.” Fragments that are specifically recognized and bound by antibodies raised against the polypeptides of the invention are also included in the definition of biologically active fragments. Such fragments are also referred to herein as “immunologically active fragments.”

Biologically active fragments of the polypeptides of the invention will generally be useful where it is desired to analyze a single particular biological activity of the polypeptide. For example, therapeutic applications will generally target a single biological activity of the PI3-kinase signaling operation, e.g., substrate binding or substrate phosphorylation, and as such, peptides having fewer than all of these activities will be desired, as discussed in greater detail, below. Alternatively, such fragments may be useful where use of a full length protein is unsuitable for the particular application.

Generally, biologically active fragments of the above described proteins may include any subsequence of a full length PI 3-kinase protein of the invention. Typically, however, such fragments will be from about 5 to about 1500 amino acids in length. More typically, these peptides will be from about 10 to about 500 amino acids in length, more typically about 10 to about 250 amino acids in length, and preferably from about 15 to about 200 amino acids in length. Generally, the length of the fragment may depend, in part, upon the application for which the particular peptide is to be used. For example, for raising antibodies, the peptides may be of a shorter length, e.g., from about 5 to about 50 amino acids in length, whereas for binding or binding inhibition applications, the peptides will generally have a greater length, e.g., from about 10 to about 1000 amino acids in length, preferably, from about 15 to about 500 amino acids in length, and more preferably, from about 15 to about 200 amino acids in length.

The terms “substantially homologous” when referring to polypeptides, refer comparatively to two amino acid sequences which, when optimally aligned, are at least about 75% homologous, preferably at least about 85% homologous more preferably at least about 90% homologous, and still more preferably at least about 95% homologous. Optimal alignment of sequences for aligning a comparison window may be conducted by the local homology algorithm of Smith and Waterman (1981) Adv. Appl. Math. 2:482, by the homology alignment algorithm of Needleman and Wunsch (1970) J. Mol. Biol. 48:443, by the search for similarity method of Pearson and Lipman (1988) Proc. Natl. Acad. Sci. (USA) 85:2444, or by computerized implementations of these algorithms (GAP, BESTFIT, FASTA, and TFASTA in the Wisconsin Genetics Software Package Release 7.0, Genetics Computer Group, 575 Science Dr., Madison, Wis.).

As noted above, the polypeptides of the invention may also be characterized by their ability to block the interaction between two proteins or a protein and its substrate. In particular, included in the polypeptides of the present invention are PI3-kinase derived peptides that are capable of blocking or otherwise inhibiting the interaction between cpk and/or cpk-m and their substrates, e.g., PtdIns and PtdIns4P. Examples of such polypeptides include fragments of cpk or cpk-m, which encompass the substrate binding regions of cpk and cpk-m. One example of such a fragment is the PI3-kinase domain of the cpk protein, bordered by amino acids 863-1587 of the cpk protein, and homologous regions of the cpk-m protein, as well as larger portions of the cpk and cpk-m proteins.

Also as referenced above, the polypeptides of the present invention may also be characterized by their ability to bind antibodies raised against proteins or polypeptides having the amino acid sequences of cpk and cpk-m, as shown in FIG. 1 (SEQ ID NOS:12-13), or fragments thereof. These antibodies generally recognize polypeptides that are homologous to the cpk or cpk-m proteins or their immunologically active fragments. A variety of immunoassay formats may be used to select antibodies specifically immunoreactive with a particular protein or domain. For example, solid-phase ELISA immunoassays are routinely used to select monoclonal antibodies specifically immunoreactive with a protein. See Harlow and Lane (1988) Antibodies, A Laboratory Manual, Cold Spring Harbor Publications, New York, for a description of immunoassay formats and conditions that can be used to determine specific immunoreactivity. Antibodies to the polypeptides of the present invention are discussed in greater detail, below.

The polypeptides of the present invention may generally be prepared using recombinant or synthetic methods well known in the art. Recombinant techniques are generally described in Sambrook, et al., Molecular Cloning: A Laboratory Manual, (2nd ed.) Vols. 1-3, Cold Spring Harbor Laboratory, (1989). Techniques for the synthesis of polypeptides are generally described in Merrifield, J. Amer. Chem. Soc. 85:2149-2456 (1963), Atherton, et al., Solid Phase Peptide Synthesis: A Practical Approach, IRL Press (1989), and Merrifield, Science 232:341-347 (1986). In preferred aspects, the polypeptides of the present invention may be expressed by a suitable host cell that has been transfected with a nucleic acid of the invention, as described in greater detail below.

Biologically active fragments of the above described polypeptides may generally be identified and prepared using methods well known in the art. For example, selective proteolytic digestion, recombinant deletional methods or de novo peptide synthesis methods may be employed to identify portions of the above described peptides that possess the desired biological activity, e.g., substrate binding, catalytic activity and the like. See, e.g., Sambrook, et al.

Isolation and purification of the polypeptides of the present invention can be carried out by methods that are generally well known in the art. For example, the polypeptides may be purified using readily available chromatographic methods, e.g., ion exchange, hydrophobic interaction, HPLC or affinity chromatography, to achieve the desired purity. Affinity chromatography may be particularly attractive in allowing an individual to take advantage of the specific biological activity of the desired peptide, e.g., ligand binding, presence of antigenic determinants or the like. For example, antibodies raised against the cpk protein or immunologically active fragments may be coupled to a suitable solid support and contacted with a mixture of proteins containing the polypeptides of the invention under conditions conducive to the association of these polypeptides with the antibody. Once bound to the immobilized antibody, the solid support is washed to remove unbound material and/or nonspecifically bound proteins. The desired polypeptides may then be eluted from the solid support in substantially pure form by, e.g., a change in salt, pH or buffer concentration. Suitable solid supports for affinity purifications are well known in the art and are generally commercially available from, e.g., Pharmacia, Inc., or Sigma Chemical Co. Examples of such solid supports include agarose, cellulose, dextran, silica, polystyrene or similar solid supports.

In addition to those polypeptides and fragments described above, the present invention also provides fusion proteins which contain these polypeptides or fragments. The term “fusion protein” as used herein, generally refers to a composite protein, i.e., a single contiguous amino acid sequence, made up of two distinct, heterologous polypeptides which are not normally fused together in a single amino acid sequence. Thus, a fusion protein may include a single amino acid sequence that contains two entirely distinct amino acid sequences or two similar or identical polypeptide sequences, provided that these sequences are not normally found together in a single amino acid sequence. Fusion proteins may generally be prepared using either recombinant nucleic acid methods, i.e., as a result of transcription and translation of a gene fusion, which fusion comprises a segment encoding a polypeptide of the invention and a segment encoding a heterologous protein, or by chemical synthesis methods well known in the art.

Also included within the present invention are amino acid variants of the above described polypeptides. These variants may include insertions, deletions and substitutions with other amino acids. For example, in some aspects, conservative amino acid substitutions may be made, i.e., substitution of selected amino acids with different amino acids having similar structural characteristics, e.g., net charge, hydrophobicity and the like. Glycosylation modifications, either changed, increased amounts or decreased amounts, as well as other sequence modifications are also envisioned.

Systematic substitution of one or more amino acids of a consensus sequence with a D-amino acid of the same type (e.g., D-lysine in place of L-lysine) may also be used to generate more stable peptides. In addition, constrained peptides comprising a consensus sequence or a substantially identical consensus sequence variation may be generated by methods known in the art (Rizo and Gierasch (1992) Ann. Rev. Biochem. 61:387; for example, by adding internal cysteine residues capable of forming intramolecular disulfide bridges which cyclize the peptide. Similarly, modification of the amino or carboxy terminals may also be used to confer stabilizing properties upon the polypeptides of the invention, e.g., amidation of the carboxy-terminus or acylation of the amino-terminus. Substitution of amino acids involved in catalytic activity can be used to generate dominant negative inhibitors of signaling pathways.

Furthermore, although primarily described in terms of “proteins” or “polypeptides” one of skill in the art, upon reading the instant specification, will appreciate that these terms also include structural analogs and derivatives of the above-described polypeptides, e.g., polypeptides having conservative amino acid insertions, deletions or substitutions, peptidomimetics and the like. For example, in addition to the above described polypeptides which consist only of naturally-occurring amino acids, peptidomimetics of the polypeptides of the present invention are also provided. Peptide analogs are commonly used in the pharmaceutical industry as non-peptide drugs with properties analogous to those of the template peptide. These types of non-peptide compounds are termed “peptide mimetics” or “peptidomimetics” (Fauchere, J. (1986) Adv. Drug Res. 15:29; Veber and Freidinger (1985) TINS p.392; and Evans et al. (1987) J. Med. Chem 30:1229, and are usually developed with the aid of computerized molecular modeling. Peptide mimetics that are structurally similar to therapeutically useful peptides may be used to produce an equivalent therapeutic effect. Generally, peptidomimetics are structurally similar to a paradigm polypeptide (i.e., a polypeptide that has a biological or pharmacological activity), such as naturally-occurring receptor-binding polypeptide, but have one or more peptide linkages optionally replaced by a linkage selected from the group consisting of: —CH₂NH—, —CH₂S—, —CH₂—CH₂—, —CH═CH— (cis and trans), —COCH₂—, —CH(OH)CH₂—, and —CH₂SO—, by methods known in the art and further described in the following references: Spatola, A. F. in Chemistry and Biochemistry of Amino Acids, Peptides, and Proteins, B. Weinstein, eds., Marcel Dekker, New York, p. 267 (1983); Spatola, A. F., Vega Data (March 1983), Vol. 1, Issue 3, “Peptide Backbone Modifications” (general review); Morley, J. S., Trends Pharm Sci (1980) pp. 463-468 (general review); Hudson, D. et al., Int J Pept Prot Res (1979) 14:177-185 (—CH₂NH—, CH₂CH₂—); Spatola, A. F. et al., Life Sci (1986) 38:1243-1249 (—CH₂—S); Hann, M. M., J. Chem Soc Perkin Trans I (1982) 307-314 (—CH—CH—, cis and trans); Almquist, R. G. et al., J Med Chem (1980) 23:1392-1398 (—COCH₂—); Jennings-White, C. et al., Tetrahedron Lett (1982) 23:2533 (—COCH₂—); Szelke, M. et al., European Appln. EP 45665 (1982) CA: 97:39405 (1982) (—CH(OH)CH₂—); Holladay, M. W. et al., Tetrahedron Lett (1983) 24:4401-4404 (—C(OH)CH₂—); and Hruby, V. J., Life Sci (1982) 31:189-199 (—CH₂—S—).

Peptide mimetics may have significant advantages over polypeptide embodiments, including, for example: more economical production; greater chemical stability; enhanced pharmacological properties (half-life, absorption, potency, efficacy, etc.); altered specificity (e.g., a broad-spectrum of biological activities); reduced antigenicity; and others.

For many applications, it may also be desirable to provide the polypeptides of the invention as labeled entities, i.e., covalently attached or linked to a detectable group, to facilitate identification, detection and quantification of the polypeptide in a given circumstance. These detectable groups may comprise a detectable protein group, e.g., an assayable enzyme or antibody epitope as described above in the discussion of fusion proteins. Alternatively, the detectable group may be selected from a variety of other detectable groups or labels, such as radiolabels (e.g., ¹²⁵I, ³²p or ³⁵S) or a chemiluminescent or fluorescent group. Similarly, the detectable group may be a substrate, cofactor, inhibitor or affinity ligand. Labeling of peptidomimetics usually involves covalent attachment of one or more labels, directly or through a spacer (e.g., an amide group), to non-interfering position(s) on the peptidomimetic that are predicted by quantitative structure-activity data and/or molecular modeling. Such non-interfering positions generally are positions that do not form direct contacts with the molecules to which the peptidomimetic binds (e.g., PtdIns) to produce the therapeutic effect. Derivitization (e.g., labeling) of peptidomimetics should not substantially interfere with the desired biological or pharmacological activity of the peptidomimetic. Generally, peptidomimetics of peptides of the invention bind to their ligands (e.g., PtdIns) with high affinity and/or possess detectable biological activity (i.e., are agonistic or antagonistic to one or more PI3-kinase mediated phenotypic changes).

IV. Nucleic Acids, Expression Vectors and Cell Lines Expressing Same

In another aspect, the present invention provides nucleic acids which encode the polypeptides of the invention, as well as expression vectors that include these nucleic acids, and cell lines and organisms that are capable of expressing these nucleic acids. These nucleic acids, expression vectors and cell lines may generally be used to produce the polypeptides of the invention. Generally, the isolated nucleic acids of the present invention encode a polypeptide which is derived from PI3-kinases that include a C2 domain within their structure. In preferred aspects, the nucleic acids of the invention encode polypeptides having PI3-kinase activity that is characterized by the capability of phosphorylating the D3 hydroxyl group on the inositol ring of PtdIns and PtdIns4P, but not PtdIns(4,5)P₂.

In preferred aspects, the nucleic acids of the invention encode a polypeptide having an amino acid sequence that is substantially homologous to the amino acid sequences shown in FIG. 1 (SEQ ID NOS:12-13). More preferred are those isolated nucleic acid sequences that are substantially homologous to the nucleotide sequences shown in FIGS. 9 (SEQ ID NOS:27-28) and 10 (SEQ ID NOS:29-32) or fragments thereof, and most preferred are those nucleic acid sequences having the nucleotide sequences shown in FIGS. 9 and 10.

“Nucleic acids” of the present invention include RNA, cDNA, genomic DNA, synthetic forms and mixed polymers, both sense and antisense strands. Furthermore, different alleles of each isoform are also included. The present invention also provides recombinant nucleic acids which are not otherwise naturally occurring. The nucleic acids described herein also include self replicating plasmids and infectious polymers of DNA or RNA. Unless specified otherwise, conventional notation for nucleic acids is used herein. For example, as written, the left hand end of a single stranded polynucleotide sequence is the 5′-end, whereas the right-hand end is the 3′-end. The left hand direction of double-stranded polynucleotide sequences is referred to as the 5′ direction. The direction of 5′ to 3′ addition of nascent RNA transcripts is referred to as the transcription direction; sequence regions on the DNA strand having the same sequence as the RNA and which are 5′ to the 5′ end of the RNA transcript are referred to as “upstream sequences”; sequence regions on the DNA strand having the same sequence as the RNA and which are 3′ to the 3′ end of the RNA transcript are referred to as “downstream sequences”.

The nucleic acids of the present invention may be present in whole cells, cell lysates or in partially pure or substantially pure or isolated form. When referring to nucleic acids, the terms “substantially pure” or “isolated” generally refer to the nucleic acid separated from contaminants with which it is generally associated, e.g., lipids, proteins and other nucleic acids. The substantially pure or isolated nucleic acids of the present invention will be greater than about 50% pure. Typically, these nucleic acids will be more than about 60% pure, more typically, from about 75% to about 90% pure and preferably from about 95% to about 98% pure.

The DNA compositions will generally include a coding region which encodes a polypeptide possessing PI3-kinase activity. Preferred nucleic acids will typically encode polypeptides having an amino acid sequence which is substantially homologous to the amino acid sequence shown in FIG. 1 (SEQ ID NOS:12-13), or biologically active fragments thereof. More preferred nucleic acids will comprise a segment having more than about 20 contiguous nucleotides from the nucleotide sequences shown in either of FIGS. 9 (SEQ ID NOS:27-28) or 10 (SEQ ID NOS:29-32), with still more preferred nucleic acids having a nucleotide sequence that is substantially homologous to either of the nucleotide sequences shown in FIGS. 9 (SEQ ID NOS:27-28) or 10 (SEQ ID NOS:29-32). Most preferred nucleic acids are those which include a portion or all of the nucleotide sequence shown in either of FIGS. 9 or 10.

The phrase “nucleic acid sequence encoding” refers to a nucleic acid which directs the expression of a specific protein or peptide. The nucleic acid sequences include both the DNA strand sequence that is transcribed into RNA and the RNA sequence that is translated into protein. The nucleic acid sequences include both the full length nucleic acid sequences as well as non-full length sequences derived from the full length protein. It being further understood that the sequence includes the degenerate codons of the native sequence or sequences which may be introduced to provide codon preference in a specific host cell.

Substantial homology in the nucleic acid context means that the segments, or their complementary strands, when compared, are the same when properly aligned, with the appropriate nucleotide insertions or deletions, in at least about 60% of the nucleotides, typically, at least about 70%, more typically, at least about 80%, usually, at least about 90%, and more usually, at least about 95% to 98% of the nucleotides. Alternatively, substantial homology exists when the segments will hybridize under selective hybridization conditions to a strand, or its complement, typically using a sequence of at least about 20 contiguous nucleotides derived from the nucleotide sequence shown in FIGS. 9 (SEQ ID NOS:27-28) or 10 (SEQ ID NOS:29-32). However, larger segments will usually be preferred, e.g., at least about 30 contiguous nucleotides, more usually about 40 contiguous nucleotides, and preferably more than about 50 contiguous nucleotides. Selective hybridization exists when hybridization occurs which is more selective than total lack of specificity. See, Kanehisa, Nucleic Acid Res. 12:203-213 (1984). Examples of such selective hybridization conditions include, e.g., hybridization under the hybridization and wash conditions of 50% formamide at 42° C. Other stringent hybridization conditions may also be selected. Generally, stringent conditions are selected to be about 5° C. lower than the thermal melting point (Tm) for the specific sequence at a defined ionic strength and pH. The Tm is the temperature (under defined ionic strength and pH) at which 50% of the target sequence hybridizes to a perfectly matched probe. Typically, stringent conditions will be those in which the salt concentration is at least about 0.02 molar at pH 7 and the temperature is at least about 60° C. As other factors may significantly affect the stringency of hybridization, including, among others, base composition and size of the complementary strands, the presence of organic solvents and the extent of base mismatching, the combination of parameters is more important than the absolute measure of any one.

There are various methods of isolating the nucleic acids which encode the polypeptides of the present invention. Typically, the DNA is isolated from a genomic or cDNA library using labeled oligonucleotide probes specific for sequences in the desired DNA. Restriction endonuclease digestion of genomic DNA or cDNA containing the appropriate genes can be used to isolate the DNA encoding the polypeptides of the invention. From the nucleotide sequence given in FIG. 9 (SEQ ID NOS:27-28) or 10 (SEQ ID NOS:29-32), a panel of restriction endonucleases can be constructed to give cleavage of the DNA in desired regions, i.e., to obtain segments which encode biologically active fragments of the polypeptides of the invention. Following restriction endonuclease digestion, DNA encoding the polypeptides of the invention is identified by its ability to hybridize with a nucleic acid probe in, for example, a Southern blot format. These regions are then isolated using standard methods. See, e.g., Sambrook, et al., supra.

The polymerase chain reaction, or “PCR” can also be used to prepare nucleic acids which encode the polypeptides of the present invention. PCR technology is used to amplify nucleic acid sequences of the desired nucleic acid, e.g., the DNA which encodes the polypeptides of the invention, directly from mRNA, cDNA, or genomic or cDNA libraries. Alternatively, solid phase oligonucleotide synthesis methods may also be employed to produce the nucleic acids described herein. Such methods include the phosphoramidite method described by, e.g., Beaucage and Carruthers, Tetrahedron Lett. 22:1859-1862 (1981), or the triester method according to Matteucci, et al., J. Am. Chem. Soc., 103:3185 (1981). A double stranded fragment may then be obtained, if desired, by annealing the chemically synthesized single strands together under appropriate conditions or by synthesizing the complementary strand using DNA polymerase with an appropriate primer sequence.

Appropriate primers and probes for amplifying the nucleic acids described herein, may be generated from analysis of the nucleic acid sequences described herein, e.g., at FIG. 9 or 10. Briefly, oligonucleotide primers complementary to the two 3′ borders of the DNA region to be amplified are synthesized. The PCR is then carried out using the two primers. See, e.g., PCR Protocols: A Guide to Methods and Applications (Innis, M., Gelfand, D., Sninsky, J. and White, T., eds.) Academic Press (1990). Primers can be selected to amplify a variety of different sized segments from the nucleic acid sequence.

The present invention also includes fragments of the above described nucleic acids. Such fragments will generally comprise a segment of from about 15 to about 150 nucleotides. These fragments can be useful as oligonucleotide probes in the methods of the present invention, or alternatively to encode the polypeptides or biologically active fragments of the present invention, described herein. Also provided are substantially similar nucleic acid sequences, allelic variations and natural or induced sequences of the above described nucleic acids. Also included are chemically modified and substituted nucleic acids, e.g., those which incorporate modified nucleotide bases or which incorporate a labelling group.

In one aspect, cDNA encoding the polypeptides of the present invention or fragments thereof, may be readily employed as nucleic acid probes useful for obtaining genes which encode the polypeptides of the present invention. “Nucleic acid probes” may be DNA or RNA fragments. DNA fragments can be prepared, for example, by digesting plasmid DNA, or by use of PCR, or synthesized by either the phosphoramidite or phosphotriester methods described in, e.g., Gait, oligonucleotide Synthesis: A Practical Approach, IRL Press (1990). Where a specific sequence for a nucleic acid probe is given, it is understood that the complementary strand is also identified and included. The complementary strand will work equally well in situations where the target is a double-stranded nucleic acid.

Typical nucleic acid probes may be readily derived from the nucleotide sequence shown in FIG. 9 (SEQ ID NOS:27-28) or 10 (SEQ ID NOS:29-32), or alternatively, may be prepared from the amino acid sequence of the cpk or cpk-m proteins, as shown in FIG. 1 (SEQ ID NOS:12-13). In particular, probes may be prepared based upon segments of the amino acid sequence which possess relatively low levels of degeneracy, i.e., few or one possible nucleic acid sequences which encode therefor. Suitable synthetic DNA fragments may then be prepared. Examples of such probes include, e.g., those having the following general sequences PK-1, PK-3 [PK-1: 5′GA(AGTC)GA(TC)(ATC)T(AGTC) (CA)G(AGCT)CA(AG)GA 3′ (SEQ ID NO:1); PK-3: 5′ CC(GA)AA(GA)TC(TGA)AT(GA)TG (TGA)A(AT)3′ (SEQ ID NO:2)], PKIN-N and PKIN-C [PKIN-N:5′ AA(AG)(AG)IIGGIGAIGA(CT)TI(AC)GICA(AG)GA 3′ (SEQ ID NO:3); PKIN-C: T(ACG)ICC(AG)AA(AG)TCI(AG)(CT)(AG)TGIA(AT)IA 3′ (SEQ ID NO:4)].

Such cDNA probes may be used in the design of oligonucleotide probes and primers for screening and cloning genes which encode the polypeptides of the invention or related polypeptides, e.g., using well known PCR techniques. These nucleic acids, or fragments may comprise part or all of the cDNA sequence that encodes the polypeptides of the present invention. Effective cDNA probes may comprise as few as 15 consecutive nucleotides in the cDNA sequence, but will often comprise longer segments. Further, these probes may further comprise an additional nucleotide sequence, such as a transcriptional primer sequence for cloning, or a detectable group for easy identification and location of complementary sequences.

cDNA or genomic libraries of various types may be screened for new alleles or related sequences using the above probes. The choice of cDNA libraries normally corresponds to tissue sources which are abundant in mRNA for the desired polypeptides. Phage libraries are normally preferred, but plasmid libraries may also be used. Clones of a library are spread onto plates, transferred to a substrate for screening, denatured, and probed for the presence of the desired sequences.

In addition to comprising a segment which encodes one or more of the above described polypeptides or biologically active fragments, the nucleic acids of the present invention may also comprise a segment encoding a heterologous protein, such that the gene is expressed to produce the two proteins as a fusion protein, as substantially described above.

Typically, the nucleic acids of the present invention will be used in expression vectors for the preparation of the polypeptides of the present invention, namely those polypeptides which possess the PI3-kinase activity described above. The phrase “expression vector” generally refers to nucleotide sequences that are capable of affecting expression of a structural gene in hosts compatible with such sequences. These expression vectors typically include at least suitable promoter sequences and optionally, transcription termination signals. Additional factors necessary or helpful in effecting expression may also be used as described herein. DNA encoding the polypeptides of the present invention will typically be incorporated into DNA constructs capable of introduction into and expression in an in vitro cell culture. Often, the nucleic acids of the present invention may be used to produce a suitable recombinant host cell. Specifically, DNA constructs will be suitable for replication in a prokaryotic host, such as bacteria, e.g., E. coli, or may be introduced into a cultured mammalian, plant, insect, yeast, fungi or other eukaryotic cell line. DNA constructs prepared for introduction into a particular host, e.g., bacteria or yeast, will typically include a replication system recognized by the host, the intended DNA segment encoding the desired polypeptide, and transcriptional and translational initiation and termination regulatory sequences operably linked to the polypeptide encoding segment. A DNA segment is operably linked when it is placed into a functional relationship with another DNA segment. For example, a promoter or enhancer is operably linked to a coding sequence if it stimulates the transcription of the sequence. DNA for a signal sequence is operably linked to DNA encoding a polypeptide if it is expressed as a preprotein that participates in the secretion of the polypeptide. Generally, DNA sequences that are operably linked are contiguous, and in the case of a signal sequence both contiguous and in reading phase. However, enhancers need not be contiguous with the coding sequences whose transcription they control. Linking is accomplished by ligation at convenient restriction sites or at adapters or linkers inserted in lieu thereof. The selection of an appropriate promoter sequence will generally depend upon the host cell selected for the expression of the DNA segment. Examples of suitable promoter sequences include prokaryotic, and eukaryotic promoters well known in the art. See, e.g., Sambrook et al., Molecular Cloning: A Laboratory Manual (2d ed.), vols. 1-3 Cold Spring Harbor Laboratory (1989). The transcriptional regulatory sequences will typically include a heterologous enhancer or promoter which is recognized by the host. The selection of an appropriate promoter will depend upon the host, but promoters such as the trp, lac and phage promoters, tRNA promoters and glycolytic enzyme promoters are known and available. See Sambrook et al., (1989).

Conveniently available expression vectors which include the replication system and transcriptional and translational regulatory sequences together with the insertion site for the polypeptide encoding segment may be employed. Examples of workable combinations of cell lines and expression vectors are described in Sambrook et al., and in Metzger et al., Nature 334:31-36 (1988). For example, suitable expression vectors may be expressed in, e.g., COS-7 cells, by providing constructs including the subject nucleic acids and employing, e.g., a cytomegalovirus enhancer/promoter region with the translation initiation region of the herpes simplex virus thymidine kinase gene. Alternatively, an insect cell line may be selected as the host cell of choice to express the polypeptide. In this case, the cDNA encoding the polypeptides of the invention may be cloned into a baculovirus expression vector (e.g. pV-IKS). The recombinant baculovirus may then be used to transfect a suitable insect host cell, e.g., Sf9 cells, which may then express the polypeptide. See, e.g., D. K. Morrison et al., Cell 58:649-657 (1989), M. D. Summers and G. E. Smith, A Manual of Methods for Baculovirus Vectors and Insect Cell Culture Procedures, Texas Agricultural Station, College Station, Tex. (1987).

V. Antibodies

The nucleic acids and polypeptides of the present invention or their immunologically active fragments are also useful in producing antibodies, either polyclonal or monoclonal, which are specifically immunoreactive with the polypeptides of the present invention.

The phrase “specifically immunoreactive,” when referring to the interaction between an antibody of the invention and a particular protein, refers to an antibody that specifically recognizes and binds with relatively high affinity to the particular protein, such that this binding is determinative of the presence of the protein in a heterogeneous population of proteins and other biologics. Thus, under designated immunoassay conditions, the specified antibodies bind to a particular protein and do not bind in a significant amount to other proteins present in the sample. A variety of immunoassay formats may be used to select antibodies specifically immunoreactive with a particular protein. For example, solid-phase ELISA immunoassays are routinely used to select monoclonal antibodies specifically immunoreactive with a protein. See, Harlow and Lane (1988) Antibodies, A Laboratory Manual, Cold Spring Harbor Publications, New York, for a description of immunoassay formats and conditions that can be used to determine specific immunoreactivity.

For production of polyclonal antibodies, an appropriate target immune system is selected, typically a mouse or rabbit, but also including goats, sheep, cows, guinea pigs, monkeys and rats. The substantially purified antigen or plasmid is presented to the immune system in a fashion determined by methods appropriate for the animal. These and other parameters are well known to immunologists. Typically, injections are given in the footpads, intramuscularly, intradermally or intraperitoneally. The immunoglobulins produced by the host can be precipitated, isolated and purified by routine methods, including affinity purification.

For monoclonal antibodies, appropriate animals will be selected and the desired immunization protocol followed. After the appropriate period of time, the spleens of these animals are excised and individual spleen cells are fused, typically, to immortalized myeloma cells under appropriate selection conditions. Thereafter, the cells are clonally separated and the supernatants of each clone are tested for the production of an appropriate antibody specific for the desired region of the antigen. Techniques for producing antibodies are well known in the art. See, e.g., Goding et al., Monoclonal Antibodies: Principles and Practice (2d ed.) Acad. Press, N.Y., and Harlow and Lane, Antibodies: A Laboratory Manual, Cold Spring Harbor Laboratory, New York (1988). Other suitable techniques involve the in vitro exposure of lymphocytes to the antigenic polypeptides or alternatively, to selection of libraries of antibodies in phage or similar vectors. Huse et al., Generation of Large Combinatorial Library of the Immunoglobulin Repertoire in Phage Lambda, Science 246:1275-1281 (1989). Monoclonal antibodies with affinities of 10⁸ liters/mole, preferably 10⁹ to 10¹⁰ or stronger, will be produced by these methods.

The antibodies generated can be used for a number of purposes, e.g., as probes in immunoassays, for inhibiting interaction between a PI3-kinase, e.g., cpk or cpk-m, and its substrate or other ligands (thereby inhibiting or reducing the signaling cascade) in diagnostic or therapeutic applications, or in research to further elucidate the mechanism of various signaling pathways. Where the antibodies are used to block the interaction between a polypeptide of the invention and an associating molecule, e.g., protein or substrate, the antibody will generally be referred to as a “blocking antibody.” The antibodies of the present invention can be used with or without modification. Frequently, the antibodies will be labeled by joining, either covalently or non-covalently, a substance which provides for a detectable signal. Such labels include those that are well known in the art, such as the labels described previously for the polypeptides of the invention. Additionally, the antibodies of the invention may be chimeric, human-like or humanized, in order to reduce their potential antigenicity, without reducing their affinity for their target. Chimeric, human-like and humanized antibodies have generally been described in the art. Generally, such chimeric, human-like or humanized antibodies comprise hypervariable regions, e.g., complementarity determining regions (CDRS) from a mammalian animal, i.e., a mouse, and a human framework region. See, e.g., Queen, et al., Proc. Nat'l Acad. Sci. USA 86:10029 (1989), Verhoeyan, et al., Science 239:1534-1536 (1988). By incorporating as little foreign sequence as possible in the hybrid antibody, the antigenicity is reduced. Preparation of these hybrid antibodies may be carried out by methods well known in the art.

Preferred antibodies are those monoclonal or polyclonal antibodies which specifically recognize and bind the polypeptides of the invention. Accordingly, these preferred antibodies will specifically recognize and bind the polypeptides which have an amino acid sequence that is substantially homologous to the amino acid sequence shown in FIG. 1, or immunologically active fragments thereof. Still more preferred are antibodies which are capable of forming an antibody-ligand complex with the polypeptides of the invention, whereby the ability of the polypeptide to associate with its substrate or normally associated proteins, in vitro, is reduced, e.g., blocking antibodies.

VI. Methods of Use

The polypeptides, antibodies and nucleic acids of the present invention may be used in a variety of important applications. Such applications include but are not limited to screening applications for identifying compounds that generally affect growth factor signal transduction pathways, also termed “signaling cascades,” and therapeutic applications for the treatment of proliferative cell disorders.

A. Screening Applications

In a particular aspect, the present invention provides methods of screening test compounds to determine whether the test compounds are capable of affecting growth cell signal transduction pathways. More particularly, the methods described herein are used to screen compounds for their ability to affect the interactions between the polypeptides of the invention, and their respective substrates and ligands, as these interactions are involved in signal transduction pathways.

In one aspect, the present invention provides a screening system for determining whether a test compound is an agonist or antagonist of PI3-kinase activity. An agonist, antagonist or test compound may be a chemical compound, a mixture of chemical compounds, a biological macromolecule, or an extract made from biological materials such as bacteria, plants, fungi, or animal cells or tissues. Typically, test compounds may include structural analogs or peptidomimetics which are derived from the polypeptides or antibodies described herein, and particularly their biologically active fragments, or substrates or ligands thereof. Test compounds are evaluated for potential activity as agonists or antagonists of functions which result in signal transduction, by inclusion in screening assays described herein. An “agonist” will enhance the particular observed activity, e.g., PtdIns phosphorylation at the D3 hydroxyl, while an “antagonist” will diminish the particular observed activity. The terms “agonist” and “antagonist”, as used herein, do not imply any particular mechanism of function. Particularly targeted test compounds include polypeptide fragments of the polypeptides of the present invention and structural analogs or peptidomimetics of these peptides.

The screening methods of the present invention typically involve the incubation of a polypeptide of the present invention, e.g., a cpk or cpk-m polypeptide, in the presence of PtdIns or PtdIns4P, as well as a particular test compound. The mixture is then assayed over time, to determine the amount of PtdIns 3P or PtdIns(3,4)P₂ produced in the presence and absence of the test compound. Where the presence of the test compound results in an increase or decrease in the amount of PtdIns 3P or PtdIns(3,4)P₂ produced, it will be indicative that the test compound is an agonist or antagonist of the PI3-kinase mediated signal transduction, respectively.

For determination of the amount of PtdIns3P or PtdIns(3,4)P₂ formed, one may employ any number of a variety of well known assay methods. For example, HPLC analysis can be readily used to quantitatively identify the above described reaction products, using, e.g., tritiated substrates, and the like. Similarly, on a more qualitative level, thin layer chromatography (TLC) can also be used to identify reaction products. The levels of the above described reaction products produced in the presence and absence of the test compound are then compared. Where the presence of the test compound results in an increase or decrease in the level of the reaction product produced by the polypeptide, it is indicative that the test compound is an agonist or antagonist of PI3-kinase activity, respectively, and more particularly, the activity of the cpk polypeptide and/or cpk-m polypeptide, as described herein.

In a related embodiment, the present invention also provides kits for carrying out the above described screening methods. The kits of the present invention generally include a polypeptide of the present invention, e.g., the cpk polypeptide, cpk-m polypeptide or a biologically active fragment thereof, as well as a substrate of the polypeptide where the catalytic activity is to be screened, e.g., PtdIns or PtdIns4P. One or more of these components may generally be provided in premeasured aliquots. The aliquots can be contained in any suitable container such as a vial or a tube. The polypeptide component can be provided in solution or in lyophilized form, and may be immobilized. The polypeptide preparation may also contain preservatives such as sodium azide or protease inhibitors such as EDTA. A carrier protein such as BSA or ovalbumin, usually between 0.5-5%, may also be included to stabilize the polypeptide. The solution form of cpk or cpk-m polypeptide may contain up to 50% glycerol if the enzyme is to be stored frozen, e.g., at −20° C. to −70° C. If the cpk or cpk-m polypeptide is provided in lyophilized form, the kit can include a reconstitution buffer to reconstitute the polypeptide, as well as a reaction buffer. Alternatively, the polypeptide can be added to the reaction buffer and the solution freeze dried. This form can be readily reconstituted in distilled water with the necessary salt components already present for the particular reaction to be screened, so that no additional reaction buffer need be supplied. Thus, depending on the form and composition of the polypeptide preparation, different buffers may be included in the kit and they may be provided in more than one aliquot. Although described in substantial detail herein, these buffers are generally optional. The appropriate substrate or ligand, depending upon the particular screening method used, may be provided in a similar fashion to that of the polypeptide component. The kits will also typically include additional reagents for carrying out the particular method, e.g., stains for detection, antibodies, solid supports and the like, as well as detailed operating specifications for their use. For example, where binding interactions are being screened, the ligand component may generally be supplied within the kit, already coupled to an appropriate support.

Once identified, particular agonists or antagonists may then be used to enhance or block the activity of the polypeptides of the present invention. This may be particularly useful in therapeutic applications (see discussion, below).

B. Therapeutic Applications

In addition to the above described uses, the polypeptides, nucleic acids and antibodies of the present invention may also be used in therapeutic applications for the treatment of human or non-human mammalian patients. The term “treatment” as used herein, refers to the full spectrum of treatments for a given disorder from which the patient is suffering, including alleviation of one, most or all symptoms resulting from that disorder, outright cure for the particular disorder and prevention of the onset of the disorder.

As described previously herein, the polypeptides of the present invention have been implicated as providing a critical step in cell signal transduction, e.g., involved in the growth factor activation cascades. One such growth factor activation cascade leads to the activation of the Ras oncagene, which has been associated with a variety of proliferative disorders including atherosclerosis, inflammatory joint diseases, psoriasis, restenosis following angioplasty, and cancer. See, e.g., G. Pelicci et al. Cell 70, 93-104 (1992); M. Rozakis-Adcock et al. Nature, 360:689 (1992), Hu et al., Science 268:100-102 (1995).

Accordingly, treatment of the above described disorders may generally be carried out by blocking or inhibiting activation of Ras. This may be accomplished by blocking or inhibiting one or more of the activities responsible for signal transduction leading to activation of Ras, including, e.g., the phosphoryation of the D3 hydroxyl of PtdIns and PtdIns4P, which compounds are involved in the signal transduction pathway which activates Ras.

Generally, inhibition of the particular activity may be carried out by providing a polypeptide of the invention which will compete with the endogenous PI3-kinases. For example, by administering to a patient an effective amount of a substrate binding portion of a polypeptide of the invention, as described herein, one may block association of endogenous PI3-kinases with their substrates, and thereby reduce the level of Ras activation. Similar strategies may be employed using blocking antibodies of the present invention, i.e., those antibodies capable of inhibiting the interaction between the polypeptides of the invention and their substrates or other ligands.

The quantities of reagents necessary for effective therapy, also referred to herein as an “effective amount,” or “therapeutically effective amount,” will depend upon many different factors, including means of administration, target site, physiological state of the patient and other medicants administered. Thus, treatment doses will need to be titrated to optimize safety and efficacy. Typically, dosages used in vitro may provide useful guidance in the amounts useful for in situ administration of these reagents. Animal testing of effective doses for treatment of particular disorders will provide further predictive indication of human dosage. Generally, therapeutically effective amounts of the GA5Ptase containing polypeptides of the present invention will be from about 0.0001 to about 10 mg/kg, and more usually, from about 0.001 to about 0.1 mg/kg of the host's body weight. Various considerations are described, e.g., in Gilman et al., (Eds.), Goodman and Gilman's: The Pharmacological Basis of Therapeutics, (8th ed. 1990), Pergamon Press, and Remington's Pharmaceutical Sciences (7th ed. 1985) Mack Publishing Co., Easton, Penn. Methods of administration, also discussed in the above references, include, e.g., oral, intravenous, intraperitoneal or intramuscular administration, and local administration, including topical, transdermal diffusion and aerosol administration, for therapeutic, and/or prophylactic treatment. The active agent, i.e., the polypeptide component, will generally be administered in a composition additionally comprising a pharmaceutically acceptable carrier. Suitable pharmaceutically acceptable carriers include water, saline, buffers and other compounds described in, e.g., the Merck Index, Merck and Co., Rahway, N.J. For some methods of administration, e.g., oral, it may be desirable to provide the active ingredient in a liposomal formulation. This is particularly desirable where the active ingredient may be subject to degradative environments, for example, proteolytic digestive enzymes. Liposomal formulations are well known in the art, and are discussed in, e.g., Remington's Pharmaceutical Sciences, supra. Administration may also be carried out by way of a controlled release composition or device, whereby a slow release of the active ingredient allows continuous administration over a longer period of time.

Constituents of pharmaceutical compositions, in addition to the active agents described herein, include those generally known in the art for the various administration methods used. For example, oral forms generally include powders, tablets, pills, capsules, lozenges and liquids. Similarly, intravenous, intraperitoneal or intramuscular formulations will generally be dissolved or suspended in a pharmaceutically acceptable carrier, e.g., water, buffered water, saline and the like. Additionally, these compositions may include additional constituents which may be required to approximate physiological conditions, such as pH adjusting and buffering agents, tonicity adjusting agents, wetting agents and the like. For solid compositions, conventional nontoxic solid carriers may be used which include, e.g., pharmaceutical grades of mannitol, lactose, starch, magnesium stearate, sodium saccharin, talcum, cellulose, glucose, sucrose, magnesium carbonate and the like.

Administration may also be carried out by way of a controlled release composition or device, whereby a slow release of the active ingredient allows continuous administration over a longer period of time.

Additionally, as PI3-kinases play critical roles in cell signaling pathways, the present invention may also provide an exogenous regulatory mechanism in the treatment of disorders where these regulatory mechanisms are disfunctional. In particular, the treatment of a particular disorder may comprise gene therapy techniques involving the mutation, dysregulation or augmentation of levels of exogenous PI3-kinase. For example, gene therapy techniques may involve the introduction into afflicted cells, of genes which encode a protein or polypeptide which possesses the PI3-kinase activity. These exogenously introduced genes' products may then augment existing levels of this activity in cells that may be otherwise deficient.

Strategies for gene therapy are reviewed in Friedmann, Science 244:1275 (9189). Genetic constructs encoding the cpk, cpk-m or functional derivatives, can be used in these gene therapy techniques. Delivery of the genetic construct of interest, i.e., the nucleic acid encoding a PI3-kinase protein or fragment, may be accomplished in vivo by administering the therapy vector to an individual patient, typically by systemic administration (e.g., intravenous, intraperitoneal, intramuscular, subdermal, or intracranial administration). Alternatively, the vector may be used to deliver nucleic acids to cells ex vivo, such as cells explanted from an individual patient or universal donor hematopoietic stem cells, neurons, etc, e.g., by transfection of the cells with nucleic acids of interest cloned into retroviruses. Following transfection, the cells are reimplanted into the patient, usually after selection for cells which have incorporated the nucleic acid. The infusion into the patient of transfected cells can replace cells which are dysfunctional for the particular regulatory scheme which results in the disorder being treated.

The present invention is further illustrated by the following examples. These examples are merely to illustrate aspects of the present invention and are not intended as limitations of this invention.

VII. EXAMPLES Example 1 Identification of the Drosophila and Murine cpk Genes.

The cpk and cpk-m genes were obtained by PCR amplification of Drosophila and murine cDNA libraries with the degenerate primers PK-1 and PK-3 [PK-1: 5′GA(AGTC)GA(TC)(ATC)T(AGTC)(CA)G(AGCT)CA(AG)GA 3′ (SEQ ID NO:1); PK-3: 5′ CC(GA)AA(GA)TC(TGA)AT(GA)TG(TGA)A(AT) 3′ (SEQ ID NO:2)] for Drosophila. These primers correspond to two regions of conserved amino acids in PtdIns kinase domains, (DE)D(LI)RQD (SEQ ID NO:5) and (FI)HIDFG (SEQ ID NO:6). The murine cpk-m gene was amplified using primers PKIN-N and PKIN-C [PKIN-N:5′ AA(AG)(AG)IIGGIGAIGA(CT)TI(AC)GICA(AG)GA 3′ (SEQ ID NO:3); PKIN-C: T(ACG)ICC(AG)AA(AG)TCI(AG)(CT)(AG)TGIA(AT)IA 3′ (SEQ ID NO:4)]. PCR products of approximately 400 base pairs were recovered and sequencing revealed open reading frames with sequence identity to p110 PtdIns 3-kinases. These DNA fragments were then used as probes to screen cDNA libraries. Large cDNAs, which did not contain the 5′ ends of the cpk cDNAs, were recovered from the Drosophila and murine libraries. The 5′ ends of the cDNAs were extended using a 5′ RACE kit (Gibco BRL). Construction of the Drosophila cDNA library from 4-8 hr Drosophila embryos was previously described in Brown et al., J. Mol. Biol. 203:425-437 (1988). The murine cDNA libraries used were random and oligo(dT) primed mouse brain and mouse liver libraries purchased from Clontech. Standard procedures were used for cloning. The sequence of DNA was determined using an A.L.F. DNA Sequencer (Pharmacia). The size of the cDNA (6.9 kb) is consistent with the size of the mRNA as estimated by northern blot analysis. Conceptual translation of the cDNA revealed a large open reading frame (ORF) encoding a protein with a predicted molecular weight of 210 Kd. The first methionine in this ORF is encoded by the first ATG in the cDNA and it is preceded by an in frame stop codon. The Drosophila and murine cpk proteins are 34% identical and 48% similar (FIG. 1) (SEQ ID NOS:12-13).

Example 2 Generation of α-cpk Polyclonal Sera

A fragment of the Drosophila cpk protein was expressed in the E. coli strain BL21DE3(lysS) as a hexahistidine fusion protein. The Drosophila cpk cDNA was digested with NcoI (cleaving at position 1892) and HpaI (at position 4157) and the resulting 2265 base pair fragment (corresponding to the fragment encoding amino acids 563-1317) was ligated into the NcoI and Ecl136II sites of pet23d (Novagen). This construct drives expression of an 85 Kd cpk hexahistidine fusion protein, named pet.1. This protein was found to reside completely in inclusion bodies. Accordingly, the inclusion bodies were purified, solubilized in 1× Laemmli sample buffer, and electrophoresed on a 8% preparative gel. The pet.1 polypeptide was eluted from a gel slice and then used to immunize rabbits (Berkeley Antibody Company). The resulting polyclonal serum, designated α-cpk, was purified on an affinity column. The affinity column was prepared by coupling two milligrams of pet.1 protein to an affigel 10 solid support, according to the manufacturer's instructions (Biorad). This antigen column was used to immunoaffinity purify α-cpk serum. The affinity purified serum was then incubated with whole cell BL21DE3(lysS) lysates that had been immobilized to a PVDF membrane (Millipore). In this manner, antibodies to E. coli proteins that coelute with pet.1 from the gel slice were eliminated. Preimmune serum was similarly treated, for use as a control.

In order to produce an independent serum that recognizes cpk protein, polyclonal α-peptide serum was also generated by immunizing rabbits with the P6 peptide (NH₂—CRQDFLSQPSTSSSQY—COOH) (SEQ ID NO:7), which corresponds to amino acids 419-434 of the cpk protein. The P6 peptide was conjugated to the carrier and then used to immunize rabbits (Berkeley Antibody Company).

The resulting α P-6 serum, which was designated α-P6, was used to precipitate protein from Drosophila lysates. The precipitates were resolved by SDS-PAGE, transferred to a PVDF membrane and probed with α-cpk serum (FIG. 3B). Both the α-cpk and α-P6 immune sera precipitated a 210 Kd polypeptide that was recognized by α-cpk serum. p210 was not detected in control precipitates using preimmune sera. Half of each precipitate (e.g., α-cpk and α-P6 precipitates) was assayed for PtdIns kinase activity and the other half was used for the detection of cpk protein on a immunoblot. PtdIns kinase activity was detected in precipitates using the α-cpk and α-P6 immune sera, but not in precipitates using preimmune sera. The PtdIns kinase activity was competed by preincubating the α-cpk serum with the cpk fusion protein or the α-P6 serum with the P6 peptide. Therefore, cpk protein precipitated from Drosophila lysates has a PtdIns kinase activity.

Polyclonal α-peptide serum against murine cpk-m was generated by immunizing rabbits with the NB-70 peptide (NH₂—CQGQVSQKDPNGTSS—COOH) (SEQ ID NO:8). This peptide was conjugated with KLH carrier protein before immunizing rabbits (Caltag). The resulting serum, which was designated 4863, was used to precipitate and probe protein from fibroblast cell lysates. A polypeptide with a molecular weight of approximately 210 kDa in the crude cell lysates and precipitates was recognized by the immune serum but not by the preimmune serum. PtdIns kinase activity was detected in precipitates using 4863 immune serum, but not in precipitates obtained using preimmune serum. Both the PtdIns kinase activity and the 210 kDa protein band on a Western blot were competed bypreincubating the 4683 serum with the NB-70 peptide.

In order to eliminate the possibility that the activity detected in the α-cpk and α-P6 precipitates resulted from a PtdIns kinase coprecipitating with cpk, rather than from cpk protein itself, it was independently determined that cpk can phosphorylate PtdIns. This was accomplished by assaying the activity of cpk protein obtained by exogenous expression in COS-7 cells (FIG. 5B). Wild-type and kinase deficient cpk proteins were tagged with an HA epitope and then expressed in COS-7 cells. A kinase deficient cpk mutant was constructed by changing a conserved lysine in the catalytic domain to arginine. Wild type and mutant cpk proteins were precipitated from COS-7 cell lysates. One half of each precipitate was assayed for PtdIns kinase activity and the other half was used for the detection of cpk protein on an immunoblot. Precipitates containing wild-type cpk protein contained a PtdIns kinase activity, while precipitates containing an equivalent amount of the mutant cpk protein did not (FIG. 5B). These data indicate that cpk protein possesses intrinsic PtdIns kinase activity.

Example 3 Preparation of Drosophila Lysates and Immunochemical Assays

Lysates were prepared by dounce homogenizing 0-12 hr Drosophila embryos in lysis buffer (20 mM N-2-hydroxyethyl piperazine-N′-2-ethanesulfonic acid (HEPES) pH 7.5, 150 mM sodium chloride, 2 mM EDTA 10 mM sodium fluoride, 10 mM sodium phosphate (pH 7.5), 10 mM tetrasodium pyrophosphate, 10 mM sodium orthovanadate, 2 mM phenylmethylsulfonyl fluoride, 10% glycerol, 10 trypsin inhibiting units/ml aprotinin, and 20 μM leupeptin). The lysates were then frozen in aliquots at −70° C. Immediately prior to use, an aliquot was thawed, diluted with lysis buffer containing 1% Triton X-100, and the insoluble proteins were pelleted in a microfuge. cpk protein was detected by immunoblotting in the following manner: proteins from lysates were resolved by SDS-PAGE on a 6% gel and then transferred to a PVDF membrane (Millipore) using high molecular weight transfer buffer; the blots were incubated with the appropriate serum diluted in TBS-T (TBS-T: 50 mM Tris pH 8.0; 150 mM sodium chloride, and 0.1% Tween-20) containing 5% dry milk and 1% ovalbumin; and then processed using an enhanced chemiluminescence kit (Amersham).

To determine if the cpk protein is a substrate of a tyrosine kinase, e.g., tyrosine phosphorylated, similar blots were probed with an α-phosphotyrosine antibody (FIG. 4). The cpk precipitations contained an α-phosphotyrosine reactive polypeptide migrating at 210 Kd, the molecular weight of the cpk protein.

Example 4 PtdIns Kinase Assays

cpk protein was precipitated from either COS-7 cell or Drosophila lysates as described in Harlow et al., Antibodies: A Laboratory Manual (Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y. (1988)). The precipitations were washed four times in lysis buffer containing 1.0% Triton X-100 and then two times in PtdIns kinase assay buffer (PtdIns kinase assay buffer: 30 mM HEPES pH 7.5, 30 mM magnesium chloride). PtdIns kinase assays in which PtdIns was used as the substrate were performed as previously described in Kaplan et al., Cell 50:1021-1029 (1987) and Whitman et al., Nature 322:644-646 (1988). The PtdIns kinase assays were modified in the following manner for the determination of PtdIns, PtdIns4P and PtdIns(4,5)P₂ substrate specificities. The PtdIns, PtdIns4P, and PtdIns(4,5)P₂ lipid substrates were mixed with an equal amount of phosphatidylserine (PS) and then sonicated to form vesicles. Preparation of vesicles with PS assures that the physical properties of the PtdIns, PtdIns4P, and PtdIns(4,5)P₂ vesicles are approximately equivalent. The products of these kinase assays were resolved by TLC (Thin Layer Chromatography) using silica gel 60 plates (Whatman) in a buffer consisting of chloroform:acetone:methanol:acetic acid:water (80:30:26:24:14). cpk Kinase assays were further modified by the addition of 0.05% 3-[(3-cholamidopropyl) dimethylammonio]-1-propanesulfonate (CHAPS) to the vesicle substrates and to the PtdIns kinase assay buffer. The addition of CHAPS was determined to stimulate cpk PtdIns kinase activity in vitro.

Example 5 Determination of the Position on the Inositol Ring Phosphorylated by cpk

Since the cpk proteins are related to PtdIns kinases, it was of interest to determine whether they could phosphorylate PtdIns, and whether this phosphorylation occurred on the D3 or D4 position of the inositol ring.

PtdIns3P and PtdIns4P were resolved using TLC with a borate buffer system that has previously been described in detail in Walsh et al., Proc. Nat'l Acad. Sci. USA 88:9184-9187 (1991). [γ³²P]-PtdIns3P and [γ³²P]-PtdIns4P standards were generated in the following manner. PtdIns3-γ³²P was produced by phosphorylating PtdIns with [γ³²P]-ATP using a constitutively active p110 mutant protein (p110*) whose construction and expression was previously described in Hu et al., Science 268:100-102 (1995). PtdIns4-γ³²P was produced by phosphorylating PtdIns with [γ³²P]-ATP with lysates (20 μg) prepared from 0-12 hr Drosophila embryos. PtdIns 4-kinases are generally the most abundant PtdIns kinases found in lysates. In order to verify that the major product of this reaction is indeed PtdIns4P, the reaction products were demonstrated to comigrate with an unlabeled PtdIns4P standard (Sigma), but could be resolved from the PtdIns3-γ³²P standard. The unlabeled PtdIns4P standard was visualized by iodine staining. Cpk protein was precipitated from either Drosophila lysates (FIG. 6A) or COS-7 cell lysates (FIG. 6B) and used to phosphorylate PtdIns. The [γ³²P] labeled products of these reactions were separated by TLC. The cpk products migrated at the position of a [γ³²P] labeled PtdIns3P standard, but not a PtdIns4P standard. The cpk products were then mixed with either PtdIns3P or PtdIns4P standards and the mixtures were resolved by TLC. The lipid products of cpk comigrated with the PtdIns3P standard, but not with the PtdIns4P standard, suggesting that the cpk reaction products are PtdIns3P and that cpk is a PtdIns 3-kinase.

PtdIns 3-kinases have distinct substrate specificities in vitro. For example, Vps34 can only phosphorylate PtdIns, while p110/p85 can phosphorylate PtdIns, PtdIns4P, and PtdIns(4,5)P₂. Using in vitro kinase assays, cpk was also determined to have a unique substrate specificity, being capable of phosphorylating PtdIns and PtdIns4P, but not PtdIns(4,5)P₂ (FIG. 7). A constitutively active p110(p110*, Hu et al., Science 268:100-102 (1995)) was used as a control and it phosphorylated PtdIns, PtdIns4P, and PtdIns(4,5)P₂. It has also been determined that wild-type cpk protein obtained from exogenous expression in COS-7 cells displayed the same substrate specificity as protein derived from Drosophila lysates. A kinase deficient cpk protein obtained from exogenous expression in COS-7 cells served as a control and was unable to phosphorylate any of these substrates.

Example 6 Expression of Proteins in COS-7 Cells

A plasmid was constructed that expressed cpk-HA fusion proteins in COS-7 cells. NotI and Smal sites were introduced into the cpk cDNA at the position of the stop condon using the primer dPIK 34 (dPIK 34: 5′ CCCCGGGTCAG CGGCCGCCGTTCCTGGACACCGCGCCCAG 3′) (SEQ ID NO:10), which corresponds to nucleotides 5755-5795 of the cDNA. A triple tandem copy of HA1 epitope on a NotI DNA fragment was ligated into the NotI site. An SpeI site was introduced at the position of the initiating methionine using the primer dPIK 29 (dPIK29: 5′ TTAGACGAGACTAGTATGTCAAATCAAGCG 3′), which corresponds to nucleotides 132-162 of the cpk cDNA. The resulting 5683 base pair SpeI/SmaI fragment was ligated into the XbaI/SmaI sites of the mammalian expression vector pCG. pCG is a derivative of pEVRF with a modified polylinker that contains the human cytomegalovirus enhancer/promoter region and the translation initiation region of the herpes simplex virus thymidine kinase gene. A kinase deficient cpk protein was constructed by changing lysine 1347 to arginine with the primer dPIK 27 (dPIK27: 5′ GTGGGACCTGATGCCGAATCTTTACCGGCTATCTTTAGGTGCGGA 3′) (SEQ ID NO:11. A constitutively active p110 mutant protein (p110*) was expressed as a control.

Example 7 Drug Sensitivity of cpk

Drug sensitivity and divalent cation requirement were determined for the cpk PtdIns kinase activity relative to p110. P110 PtdIns 3-kinase activity is sensitive to wortmannin, a fungal metabolite that has been shown to be a selective inhibitor of PtdIns kinases. In vitro, the wortmannin sensitivity of the cpk PI3-kinase activity is similar to that of p110. The IC-50 (half maximal inhibition) value for p110 was determined to be 7.5 nM, which is a value consistent with previous studies (Woscholski et al., FEBS Lett. 342:109-114 (1994)). The IC-50 for wortmannin inhibition of cpk was 11 nM. Also, p110 requires the addition of either Mg²⁺ or Mn²⁺ to in vitro kinase assays, although the enzyme is more active in the presence of Mg²⁺ (Volinia et al., EMBO J. 14:3339-3348 (1995)). In contrast, cpk strictly requires the presence of Mg²⁺ in in vitro kinase assays, and the enzyme is inactive in the presence of Mn²⁺.

Example 8 Identification of cpk Binding Proteins

Monoclonal antibody serum was generated which specifically recognizes cpk (α-cpk.m1), for the purpose of identifying cpk binding proteins. The serum recognizes cpk on an immunoblot of lysates prepared from 0-12 hr Drosophila embryos (FIG. 8A). cpk protein was precipitated from Drosophila lysates using α-cpk.m1 and the precipitates were resolved by SDS-PAGE. The proteins were visualized by silver staining (FIG. 8B). In addition to cpk, two other proteins were observed having approximate molecular weights of 90 Kd and 190 Kd (p90 and p190, respectively). These proteins were not recognized by α-cpk.m1 serum on an immunoblot, indicating that these fragments are not related to cpk. This also indicates that these proteins are not independently precipitated by the serum. Blots of cpk precipitates containing cpk, p90 and p190 were probed with α-phosphotyrosine to determine whether these proteins were tyrosine phosphorylated. Proteins migrating at approximately 190 Kd and 210 Kd reacted with the antiphosphotyrosine antibody, indicating tyrosine phosphorylation, and probable regulation by tyrosine kinases (See also FIG. 4).

While the foregoing invention has been described in some detail for purposes of clarity and understanding, it will be clear to one skilled in the art from a reading of this disclosure that various changes in form and detail can be made without departing from the true scope of the invention. All publications and patent documents cited in this application are incorporated by reference in their entirety for all purposes to the same extent as if each individual publication or patent document were so individually denoted.

32 17 base pairs nucleic acid single linear DNA (probe) not provided 1 GANGAYHTNM GNCARGA 17 17 base pairs nucleic acid single linear DNA (probe) not provided 2 CCRAARTCDA TRTGDAW 17 25 base pairs nucleic acid single linear DNA (probe) not provided modified_base one-of(5,6,9,12,17,20) /note= “inosine” 3 AARRNNGGNG ANGAYTNMGN CARGA 25 22 base pairs nucleic acid single linear DNA (probe) not provided modified_base one-of(3,12,18,21) /note= “inosine” 4 TVNCCRAART CNRYRTGNAW NA 22 6 amino acids amino acid single linear peptide not provided Region one-of(1) /note= “Xaa is Asp or Glu.” Region one-of(3) /note= “Xaa is Leu or Ile.” 5 Xaa Asp Xaa Arg Gln Asp 1 5 6 amino acids amino acid single linear peptide not provided Region one-of(1) /note= “Xaa is Phe or Ile.” 6 Xaa His Ile Asp Phe Gly 1 5 16 amino acids amino acid single linear peptide not provided 7 Cys Arg Gln Asp Phe Leu Ser Gln Pro Ser Thr Ser Ser Ser Gln Tyr 1 5 10 15 15 amino acids amino acid single linear peptide not provided 8 Cys Gln Gly Gln Val Ser Gln Lys Asp Pro Asn Gly Thr Ser Ser 1 5 10 15 40 base pairs nucleic acid single linear DNA (primer) not provided 9 CCCCGGGTCA GCGGCCGCCG TTCCTGGACA CCGCGCCCAG 40 30 base pairs nucleic acid single linear DNA (primer) not provided 10 TTAGACGAGA CTAGTATGTC AAATCAAGCG 30 45 base pairs nucleic acid single linear DNA (primer) not provided 11 GTGGGACCTG ATGCCGAATC TTTACCGGCT ATCTTTAGGT GCGGA 45 1876 amino acids amino acid single linear protein not provided 12 Met Ser Asn Gln Ala His Ile Asp Tyr Asp Lys Gln Phe Gln Asp Asp 1 5 10 15 Leu Ala Lys Ala Thr Ala Leu Ser Leu Glu Gln His Ala Leu Asp Asp 20 25 30 Tyr Arg Arg Asn Lys Lys Tyr Gly Ser Gly Tyr Gln Gln Ser Ser Thr 35 40 45 Val Ala Gly Arg Asp Tyr Gln Ala Ala Gln Arg Ser Gln Ser Leu His 50 55 60 Gln Pro Arg Arg His Ser Glu Val His Gln Val Ala Ile Ser Pro Glu 65 70 75 80 Asn Ala Glu Arg Ser Arg Thr Pro Pro Ala Gln Gly Thr Asp Asn Asp 85 90 95 Leu Ile Cys Phe Ala Ser Pro Thr Ser Lys Gln Pro Glu Ser Ser Ser 100 105 110 Pro Phe Gly Lys Leu Ile Glu Asp Leu Gln Arg Met Gln Pro Thr Asn 115 120 125 Pro Gln Ser Ala Leu Val Pro Met Gly Pro Val Ala Ser Ala Ser Ile 130 135 140 Pro Pro Gln Tyr Gly Phe Pro Pro His Gln Gln Arg Pro Thr Ala Ala 145 150 155 160 Gln Pro Thr Pro Tyr Gly Met Val Ala Gly Gly Val Val Gly Gly Pro 165 170 175 Ala Tyr Gly Asp Leu Gln Leu Val Pro Tyr Gln Pro Ala Ala Gln Gln 180 185 190 Gln Arg Pro Leu Asn Ser Glu Glu Leu Gln Arg Leu Tyr Ser Met Pro 195 200 205 Ala Gln Met Ala Val Val Pro Val Pro Gln Pro Asn Ala Tyr Met Tyr 210 215 220 Tyr Pro Gly Ala Val Val Thr Pro Tyr Thr Ala Pro Ile Val Pro Gly 225 230 235 240 Ser Ala Ala Phe Met Pro Pro Gln Tyr Pro Ala Gln Gly Tyr Gly Phe 245 250 255 Gly Gly Ala Tyr Thr His Met Asp Leu Arg Arg Pro Gln Ser Gln Pro 260 265 270 Ala Pro Gln Gln Thr Ala Pro Thr Thr Ser His His His Ser Gln Pro 275 280 285 Ser Asn His Ser Thr Ser Ser Pro Ala Glu Ala Asn Gly Val Ala Phe 290 295 300 Pro Ala Arg Arg Gln Val Pro Ser Thr Val Gly Val Ser Ser Ser Ser 305 310 315 320 His Thr Gly Asn Asn Gly His Ser Ser Val Pro Arg Arg Gly Asn Asp 325 330 335 Leu Ile Asp Leu Asn His Glu Asp Tyr Ser Arg Val Ser Val Leu Glu 340 345 350 Ala Phe Asp Pro Leu Leu Asn Asp Asn Thr Gly Asn Asp Thr Ala Ser 355 360 365 Asp Ser Thr Ser Tyr Tyr Ala Glu Tyr Asp Pro Phe Asp Phe Leu Tyr 370 375 380 Ser Gly Asp Ala Ala Thr Gln Tyr Ser Asp Pro Met Tyr Glu Ala Val 385 390 395 400 Asn Arg Trp Asp Lys Thr Val Ala Thr Val Ser Pro Asn Val Gly Leu 405 410 415 Ile Gly Trp Arg Gln Asp Phe Leu Ser Gln Pro Ser Thr Ser Ser Ser 420 425 430 Gln Tyr Gly Val Ala Pro Pro Glu Glu Ser Leu Lys Leu Ala Glu Asn 435 440 445 Gly Ser Gly Thr Ile Ser Pro Pro Pro Pro Leu Pro Pro Arg Asn Gln 450 455 460 Gln Cys Tyr Glu Ser Asn Gln Ala Ala Met Pro Val Ser Arg Pro Pro 465 470 475 480 Gln Ser Ser Val Leu Thr Asp Ser Tyr Thr Ser Ser Ile Pro Ala Asn 485 490 495 Val Val Leu Asp Arg Arg Lys Thr Cys Thr Arg Leu Tyr Glu Leu Ile 500 505 510 Ser Asp Gln Arg Thr Asp Asp Pro Glu Leu Leu Glu Phe Tyr His Met 515 520 525 Val Lys Glu Val Arg Ala Arg Tyr Pro His Asp Asp Ala Pro Thr Asn 530 535 540 Val Gly His Val Val Ala Ala Glu Phe Asn Tyr His Tyr Met Met Asp 545 550 555 560 Thr Ser Ile Lys Val Ile Val His Pro Ala Leu Asn Thr Leu Gln Ser 565 570 575 Thr Val Leu Ala Ala Ser Met Gly Lys Glu Gln Val Lys Gly Tyr Gly 580 585 590 Met Pro Val Thr Phe Thr Cys Asp Ile Asp Ser Val Val Ala Gln Val 595 600 605 Val Ala Gln Ala Leu Ala Ser Leu Glu Gly Gln Val Lys Gly Thr Val 610 615 620 Thr Asp Tyr Ala Val Lys Pro Ile Gly Leu Leu Glu Trp Leu Ala Pro 625 630 635 640 Thr Ser Arg Leu Ser Gln Leu Glu Cys Val His Asn Ser Phe Gln Leu 645 650 655 Glu Lys Asp Val His Leu Gly Leu Cys Leu Ser Thr Ala Ala Asn Met 660 665 670 Gln Ala Ile Ala Arg Thr Glu Arg Asp Asp Glu His Asp Ala Asp Leu 675 680 685 Leu Pro Glu His Leu Leu Pro Asn Glu Val Val Gln Ile Val Thr Tyr 690 695 700 Asp Asn Met Met Ile Leu Ile Glu Thr Leu Glu Met Glu Ile Asp Lys 705 710 715 720 Leu Glu Ser Ala Ala Asp Gly Val Pro Gly Arg Ser Val Val Ser Cys 725 730 735 Ser Gly Val Val Gln Ala Val Lys Ala Ile Cys Ala Leu Leu Gly Ser 740 745 750 Ile Asp Thr Met Glu Ile Ala Arg Cys Val Ala Asp Leu Lys Arg Ile 755 760 765 Cys Glu Val Glu Gln Lys Lys Tyr Ser Thr Gly Ala Ser Asn Pro Glu 770 775 780 Ile Val Ser Asp Tyr Gly Asp Tyr Ala Gln Val Val Leu Arg Pro Arg 785 790 795 800 Ser Met Leu Glu Gln Ile Lys Val Lys Cys Asn Glu Leu Arg Asp Ala 805 810 815 Val Gln Glu Leu Val Glu Leu Tyr Ala Asn Val Phe Arg Val Ala Phe 820 825 830 Ser Val Lys Thr Pro Asp Tyr Ser Thr Thr Pro Ile Pro Ile Ser Cys 835 840 845 Val Ser Lys Pro Ile Val Val Cys Ile Ser Cys Leu His Arg Pro Leu 850 855 860 Pro Asn Trp Lys Phe Asp Asp Tyr Ser Leu Cys Val Gln Ile Val Tyr 865 870 875 880 Gly Thr Arg Leu Leu Ser Lys Pro Asn Val Leu Thr Cys Ser Asn Asp 885 890 895 Thr Ser Gly Gly Leu Phe Pro Arg Leu Asn Phe Ser Ala Trp Leu Thr 900 905 910 Phe Asp Gln His Pro Ile Cys Thr Leu Pro Arg Glu Ala Arg Leu Thr 915 920 925 Phe Val Leu Tyr Gly Lys Gln Ala Ala Ser Glu Gly Glu Pro Asn Ala 930 935 940 Asp Gln Asn Gly Glu Arg Arg Gln Val Thr Thr Glu Leu Gly Trp Cys 945 950 955 960 Ser Ile Gln Leu Phe Asp Phe Lys Arg Val Met Ile Cys Gly Pro Tyr 965 970 975 Leu Leu Ser Leu Trp Pro Pro Met Thr Asp Lys Met Leu Gly Pro Ala 980 985 990 Pro Ala Arg Gly Cys His Pro Gln Pro Asp Phe Cys Pro Val Leu Ser 995 1000 1005 Ile Glu Val Pro Pro Tyr Gly Gly Arg Ile Glu Phe Pro Glu His Gln 1010 1015 1020 Glu Val Pro Lys Pro Ala Pro His Tyr Asp Phe Ala Ser Leu Asp Ala 1025 1030 1035 1040 Asn Leu Gln Glu Glu Leu Leu Asp Thr Ala Glu Leu Gly Tyr Thr Gly 1045 1050 1055 Ala Thr Glu Arg Arg Glu Val Phe Trp Glu Lys Arg Leu Tyr Leu Gln 1060 1065 1070 Ser Tyr Pro Asn Ala Leu Pro Lys Val Leu His Ala Ala His Ser Trp 1075 1080 1085 Asp Tyr Ala Asn Leu Ile Asp Leu His Ala Leu Leu His Ser Trp Ala 1090 1095 1100 Pro Leu Ser Pro Leu Gln Ser Leu Glu Leu Leu Leu Pro Arg Tyr Pro 1105 1110 1115 1120 Asp Ala Lys Val Arg Glu Lys Ala Val Glu Trp Ile Ser Lys Met Pro 1125 1130 1135 Asn Asp Gln Leu Val Asp Phe Leu Pro Gln Leu Val Gln Ser Leu Lys 1140 1145 1150 His Asp Thr Tyr Glu Gly Ser Ala Met Ala Arg Phe Leu Leu Ser Lys 1155 1160 1165 Cys Leu Glu Ser Pro Arg Phe Ala His His Met Tyr Trp Leu Leu Val 1170 1175 1180 His Ser Leu Pro Asp Asp Pro His Asn Ser Ile Gly Ala Ala Met Val 1185 1190 1195 1200 Asp Gln Glu Tyr Asp Glu Ser Gln Val Thr Gln Val Arg Tyr Tyr Arg 1205 1210 1215 Arg Asn Lys Met Met Leu Arg Ala Leu Met Ala Ile Cys Gly Glu Lys 1220 1225 1230 Met Leu Gln Arg Phe Met Tyr Gln His Arg Met Cys Gln Lys Leu Thr 1235 1240 1245 Thr Ile Ala Glu Ser Val Lys Glu Ala Lys Glu Ser Met Arg Gln Lys 1250 1255 1260 Ser Leu Ala Ala Gly Met Asp Glu Val His Gln Asp Leu Leu Glu Gln 1265 1270 1275 1280 Pro Thr Cys Leu Pro Leu Gly Pro Glu Leu Glu Val Thr Gly Val Ser 1285 1290 1295 Val Arg Asn Cys Ser Tyr Phe Asn Ser Asn Thr Leu Pro Leu Lys Ile 1300 1305 1310 Asn Phe Val Gly Pro Asp Ala Glu Ser Leu Pro Ala Ile Phe Lys Cys 1315 1320 1325 Gly Asp Asp Leu Gln Gln Asp Gln Leu Thr Ile Gln Leu Ile Arg Ile 1330 1335 1340 Met Asn Lys Met Trp Leu Ala Glu Arg Leu Asp Leu Lys Met Val Thr 1345 1350 1355 1360 Phe Asn Cys Val Pro Thr Gly Tyr Lys Ser Gly Met Ile Glu Leu Val 1365 1370 1375 Ser Glu Ala Glu Thr Leu Arg Lys Ile Gln Val Glu Cys Gly Leu Thr 1380 1385 1390 Gly Ser Phe Lys Asp Arg Pro Ile Ala Glu Trp Leu Gly Lys Gln Asn 1395 1400 1405 Pro Ser Pro Leu Glu Tyr Gln Ser Ala Val Arg Asn Phe Thr Leu Ser 1410 1415 1420 Cys Ala Gly Tyr Ser Val Ala Thr Tyr Val Leu Gly Ile Cys Asp Arg 1425 1430 1435 1440 His Asn Asp Asn Ile Met Leu Lys Thr Ser Gly His Leu Phe His Ile 1445 1450 1455 Asp Phe Gly Lys Phe Leu Gly Asp Ala Gln Met Phe Gly Asn Phe Lys 1460 1465 1470 Arg Asp Arg Thr Pro Phe Val Leu Thr Ser Asp Met Ala Tyr Val Ile 1475 1480 1485 Asn Gly Gly Asp Lys Pro Ser Thr Asp Phe His Tyr Phe Val Asp Leu 1490 1495 1500 Cys Cys Arg Ala Phe Asn Ile Val Arg Lys Asn Ala Asp Leu Leu Leu 1505 1510 1515 1520 His Thr Leu Ala His Met Ala Thr Ala Gly Met Pro Gly Val Asn Ser 1525 1530 1535 Asn Ala Val Gln Tyr Val Arg Arg Ala Leu Leu Pro Ser Gln Ser Asn 1540 1545 1550 Pro Glu Ala Ala Ala Thr Phe Ala Lys Met Ile Gln Ser Ser Leu Lys 1555 1560 1565 Ser Trp Phe Thr Gln Phe Asn Phe Phe Leu His Asn Leu Ala Gln Met 1570 1575 1580 Arg Phe Thr Pro Asp Glu Gly Ser Gly Glu Leu Leu Ser Phe Val Pro 1585 1590 1595 1600 Arg Lys Tyr Thr Met Gln Gln Asp Gly Arg Leu Lys Ile Val Lys Val 1605 1610 1615 Val Cys Phe Gln Lys His Tyr Ser Met Glu Lys Glu Tyr Met Tyr Ile 1620 1625 1630 Leu Glu Val Thr Arg His Gly Gln Pro Asp Pro Thr His Leu Phe Arg 1635 1640 1645 Ser Tyr Arg Glu Phe Thr Glu Phe His Gln Lys Leu Cys Met His Phe 1650 1655 1660 Pro Leu Val Lys Leu His Ser Leu Pro Ala Gly Val His Val Gly Arg 1665 1670 1675 1680 Ser Asn Lys Ser Val Ala Glu Lys Arg Leu Pro Leu Ile Gln Arg Phe 1685 1690 1695 Leu Lys Ser Leu Phe Asp Ala Ser Glu Glu Ile Ile Ala His Ser Glu 1700 1705 1710 Leu Val Tyr Thr Phe Phe His Pro Leu Leu Arg Asp Gln Gln Glu Ala 1715 1720 1725 Lys Leu Gly Met Pro Lys Ile Lys Glu Val Lys Gln Gln Pro Ser Arg 1730 1735 1740 Asp Asn Pro His Glu Ile Gly Gln Ile Arg Leu Ser Leu Gln Tyr Gln 1745 1750 1755 1760 Arg Gly Val Leu Thr Val Met Ile His His Ala Lys Gly Leu Pro Met 1765 1770 1775 Leu Gln Gly Gly Gln Glu Pro Asn Thr Tyr Val Lys Cys Tyr Leu Lys 1780 1785 1790 Pro Asp Pro Lys Lys Glu Thr Lys Arg Lys Thr Lys Val Val Arg Lys 1795 1800 1805 Thr Cys Val Pro Ser Phe Met Glu Thr Leu Glu Tyr Arg Met Pro Leu 1810 1815 1820 Asn Ile Ile Gln Glu Arg Arg Leu Gln Val Thr Val Trp Ser His Asp 1825 1830 1835 1840 Thr Leu Gln Glu Asn Glu Leu Leu Gly Gly Phe Asp Met Asp Leu Ser 1845 1850 1855 Lys Tyr Asp Leu Arg Gln Glu Leu Val Asp Trp Tyr Arg Leu Gly Ala 1860 1865 1870 Val Ser Arg Asn 1875 1658 amino acids amino acid single linear protein not provided 13 Met Ala Gln Ile Ser Asn Asn Ser Glu Phe Lys Gln Cys Ser Ser Ser 1 5 10 15 His Pro Glu Pro Ile Arg Thr Lys Asp Val Asn Lys Ala Glu Ala Leu 20 25 30 Gln Met Glu Ala Glu Ala Leu Ala Lys Leu Gln Lys Asp Arg Gln Met 35 40 45 Thr Asp Ser Pro Arg Gly Phe Glu Leu Ser Ser Ser Thr Arg Gln Arg 50 55 60 Thr Gln Gly Phe Asn Lys Gln Asp Tyr Asp Leu Met Val Phe Pro Glu 65 70 75 80 Leu Asp Ser Gln Lys Arg Ala Val Asp Ile Asp Val Glu Lys Leu Thr 85 90 95 Gln Ala Glu Leu Glu Lys Ile Leu Leu Asp Asp Asn Phe Glu Thr Arg 100 105 110 Lys Pro Pro Ala Leu Pro Val Thr Pro Val Leu Ser Pro Ser Phe Ser 115 120 125 Thr Gln Leu Tyr Leu Arg Pro Ser Gly Gln Arg Gly Gln Trp Pro Pro 130 135 140 Gly Leu Cys Gly Pro Ser Thr Tyr Thr Leu Pro Ser Thr Tyr Pro Ser 145 150 155 160 Ala Tyr Ser Lys Gln Ala Thr Phe Gln Asn Gly Phe Ser Pro Arg Met 165 170 175 Pro Thr Phe Pro Ser Thr Glu Ser Val Tyr Leu Arg Leu Pro Gly Gln 180 185 190 Ser Pro Tyr Phe Ser Tyr Pro Leu Thr Pro Ala Thr Pro Phe His Pro 195 200 205 Gln Gly Ser Leu Pro Val Tyr Arg Pro Leu Val Ser Pro Asp Met Ala 210 215 220 Lys Leu Phe Glu Lys Ile Ala Ser Thr Ser Glu Phe Leu Lys Asn Gly 225 230 235 240 Lys Ala Arg Thr Asp Leu Glu Ile Ala Asn Ser Lys Ala Ser Val Cys 245 250 255 Asn Leu Gln Ile Ser Pro Lys Ser Glu Asp Ile Asn Lys Phe Asp Trp 260 265 270 Leu Asp Leu Asp Pro Trp Asp Ala Val Leu Leu Glu Glu Arg Ser Pro 275 280 285 Ser Cys His Leu Glu Arg Lys Val Asn Gly Lys Ser Leu Ser Gly Ala 290 295 300 Thr Val Thr Arg Ser Gln Ser Leu Ile Ile Arg Thr Ala Gln Phe Thr 305 310 315 320 Lys Ala Gln Gly Gln Val Ser Gln Lys Asp Pro Asn Gly Thr Ser Ser 325 330 335 Leu Pro Thr Gly Ser Ser Leu Leu Gln Glu Phe Glu Val Gln Asn Asp 340 345 350 Glu Val Ala Ala Phe Cys Gln Ser Ile Met Lys Leu Lys Thr Lys Phe 355 360 365 Pro Tyr Thr Asp His Cys Thr Asn Pro Gly Tyr Leu Leu Ser Pro Val 370 375 380 Thr Val Gln Arg Asn Met Cys Gly Glu Asn Ala Ser Val Lys Val Ser 385 390 395 400 Ile Glu Ile Glu Gly Leu Gln Leu Pro Val Thr Phe Thr Cys Asp Val 405 410 415 Ser Ser Thr Val Glu Ile Ile Ile Met Gln Ala Leu Cys Trp Val His 420 425 430 Asp Asp Leu Asn Gln Val Asp Val Gly Ser Tyr Ile Leu Lys Val Cys 435 440 445 Gly Gln Glu Glu Val Leu Gln Asn Asn His Cys Leu Gly Ser His Glu 450 455 460 His Ile Gln Asn Cys Arg Lys Trp Asp Thr Glu Ile Lys Leu Gln Leu 465 470 475 480 Leu Thr Leu Ser Ala Met Cys Gln Asn Leu Ala Arg Thr Ala Glu Asp 485 490 495 Asp Glu Ala Pro Val Asp Leu Asn Lys Tyr Leu Tyr Gln Ile Glu Lys 500 505 510 Pro Tyr Lys Glu Val Met Ile Arg His Pro Val Glu Glu Leu Leu Asp 515 520 525 Ser Tyr His Tyr Gln Val Glu Leu Ala Leu Gln Thr Glu Asn Gln His 530 535 540 Arg Ala Val Asp Gln Val Ile Lys Ala Val Arg Lys Ile Cys Ser Ala 545 550 555 560 Leu Asp Gly Val Glu Thr Pro Ser Val Thr Glu Ala Val Lys Lys Leu 565 570 575 Lys Arg Ala Val Asn Leu Pro Arg Asn Lys Ser Ala Asp Val Thr Ser 580 585 590 Leu Ser Gly Ser Asp Thr Arg Lys Asn Ser Thr Lys Gly Ser Leu Asn 595 600 605 Pro Glu Asn Pro Val Gln Val Ser Met Asp His Leu Thr Thr Ala Ile 610 615 620 Tyr Asp Leu Leu Arg Leu His Ala Asn Ser Ser Arg Cys Ser Thr Gly 625 630 635 640 Cys Pro Arg Gly Ser Arg Asn Ile Lys Glu Ala Trp Thr Ala Thr Glu 645 650 655 Gln Leu Gln Phe Thr Val Tyr Ala Ala His Gly Ile Ser Ser Asn Trp 660 665 670 Val Ser Asn Tyr Glu Lys Tyr Tyr Leu Ile Cys Ser Leu Ser His Asn 675 680 685 Gly Lys Asp Leu Phe Lys Pro Ile Gln Ser Lys Lys Val Gly Thr Tyr 690 695 700 Lys Asn Phe Phe Tyr Leu Ile Lys Trp Asp Glu Leu Ile Ile Phe Pro 705 710 715 720 Ile Gln Ile Ser Gln Leu Pro Leu Glu Ser Val Leu His Leu Thr Leu 725 730 735 Phe Gly Val Leu Asn Gln Ser Ser Gly Ser Ser Pro Asp Ser Asn Lys 740 745 750 Gln Arg Lys Gly Pro Glu Ala Leu Gly Lys Val Ser Leu Thr Leu Phe 755 760 765 Asp Phe Lys Arg Phe Leu Thr Cys Gly Thr Lys Leu Leu Tyr Leu Trp 770 775 780 Thr Ser Ser His Thr Asn Ser Ile Pro Gly Ala Ile Pro Lys Lys Ser 785 790 795 800 Tyr Val Met Glu Arg Ile Val Leu Gln Val Asp Phe Pro Ser Pro Ala 805 810 815 Phe Asp Ile Ile Tyr Thr Ser Pro Gln Ile Asp Arg Asn Ile Ile Gln 820 825 830 Gln Asp Lys Leu Glu Thr Leu Glu Ser Asp Ile Lys Gly Lys Leu Leu 835 840 845 Asp Ile Ile His Arg Asp Ser Ser Phe Gly Leu Ser Lys Glu Asp Lys 850 855 860 Val Phe Leu Trp Glu Asn Arg Tyr Tyr Cys Leu Lys His Pro Asn Cys 865 870 875 880 Leu Pro Lys Ile Leu Ala Ser Ala Pro Asn Trp Lys Trp Ala Asn Leu 885 890 895 Ala Lys Thr Tyr Ser Leu Leu His Gln Trp Pro Pro Leu Cys Pro Leu 900 905 910 Ala Ala Leu Glu Leu Leu Asp Ala Lys Phe Ala Asp Gln Gly Val Arg 915 920 925 Ser Leu Ala Val Ser Trp Met Glu Ala Ile Ser Asp Asp Glu Leu Ala 930 935 940 Asp Leu Leu Pro Gln Phe Val Gln Ala Leu Lys Tyr Glu Ile Tyr Leu 945 950 955 960 Asn Ser Ser Leu Val Arg Phe Leu Leu Ser Arg Ala Leu Gly Asn Ile 965 970 975 Gln Ile Ala His Ser Leu Tyr Trp Leu Leu Lys Asp Ala Leu His Asp 980 985 990 Thr His Phe Gly Ser Arg Tyr Glu His Val Leu Gly Ala Leu Leu Ser 995 1000 1005 Val Gly Gly Lys Gly Leu Arg Glu Glu Leu Ser Lys Gln Met Lys Leu 1010 1015 1020 Val Gln Leu Leu Gly Gly Val Ala Glu Lys Val Arg Gln Ala Ser Gly 1025 1030 1035 1040 Ser Thr Arg Gln Val Val Leu Gln Lys Ser Met Glu Arg Val Gln Ser 1045 1050 1055 Phe Phe Leu Arg Asn Lys Cys Arg Leu Pro Leu Lys Pro Ser Leu Val 1060 1065 1070 Ala Lys Glu Leu Asn Ile Lys Ser Cys Ser Phe Phe Ser Ser Asn Ala 1075 1080 1085 Met Pro Leu Lys Val Thr Met Val Asn Ala Asp Pro Leu Gly Glu Glu 1090 1095 1100 Ile Asn Val Met Phe Lys Val Gly Glu Asp Leu Arg Gln Asp Met Leu 1105 1110 1115 1120 Ala Leu Gln Met Ile Lys Ile Met Asp Lys Ile Trp Leu Lys Glu Gly 1125 1130 1135 Leu Asp Leu Arg Met Val Ile Phe Arg Cys Leu Ser Thr Gly Arg Asp 1140 1145 1150 Arg Gly Met Val Glu Leu Val Pro Ala Ser Asp Thr Leu Arg Lys Ile 1155 1160 1165 Gln Val Glu Tyr Gly Val Thr Gly Ser Phe Lys Asp Lys Pro Leu Ala 1170 1175 1180 Glu Trp Leu Arg Lys Tyr Asn Pro Ser Glu Glu Glu Tyr Glu Lys Ala 1185 1190 1195 1200 Ser Glu Asn Phe Ile Tyr Ser Cys Ala Gly Cys Cys Val Ala Thr Tyr 1205 1210 1215 Val Leu Gly Ile Cys Asp Arg His Asn Asp Asn Ile Met Leu Arg Ser 1220 1225 1230 Thr Gly His Met Phe His Ile Asp Phe Gly Lys Phe Leu Gly His Ala 1235 1240 1245 Gln Met Phe Gly Ser Phe Lys Arg Asp Arg Ala Pro Phe Val Leu Thr 1250 1255 1260 Ser Asp Met Ala Tyr Val Ile Asn Gly Gly Glu Lys Pro Thr Ile Arg 1265 1270 1275 1280 Phe Gln Leu Phe Val Asp Leu Cys Cys Gln Ala Tyr Asn Leu Ile Arg 1285 1290 1295 Lys Gln Thr Asn Leu Phe Leu Asn Leu Leu Ser Leu Met Ile Pro Ser 1300 1305 1310 Gly Leu Pro Glu Leu Thr Ser Ile Gln Asp Leu Lys Tyr Val Arg Asp 1315 1320 1325 Ala Leu Gln Pro Gln Thr Thr Asp Ala Glu Ala Thr Ile Phe Phe Thr 1330 1335 1340 Arg Leu Ile Glu Ser Ser Leu Gly Ser Ile Ala Thr Lys Phe Asn Phe 1345 1350 1355 1360 Phe Ile His Asn Leu Ala Gln Leu Arg Phe Ser Gly Leu Pro Ser Asn 1365 1370 1375 Asp Glu Pro Ile Leu Ser Phe Ser Pro Lys Thr Tyr Ser Phe Arg Gln 1380 1385 1390 Asp Gly Arg Ile Lys Glu Val Ser Val Phe Thr Tyr His Lys Lys Tyr 1395 1400 1405 Asn Pro Asp Lys His Tyr Ile Tyr Val Val Arg Ile Leu Arg Glu Gly 1410 1415 1420 His Leu Glu Pro Ser Phe Val Phe Arg Thr Phe Asp Glu Phe Gln Glu 1425 1430 1435 1440 Leu His Asn Lys Leu Ser Ile Ile Phe Pro Leu Trp Lys Leu Pro Gly 1445 1450 1455 Phe Pro Asn Arg Met Val Leu Gly Arg Thr His Ile Lys Asp Val Ala 1460 1465 1470 Ala Lys Arg Lys Ile Glu Leu Asn Ser Tyr Leu Gln Ser Leu Met Asn 1475 1480 1485 Ala Ser Thr Asp Val Ala Glu Cys Asp Leu Val Cys Thr Phe Phe His 1490 1495 1500 Pro Leu Leu Arg Asp Glu Lys Ala Glu Gly Ile Ala Arg Ser Ala Gly 1505 1510 1515 1520 Ala Val Pro Phe Ser Pro Thr Leu Gly Gln Ile Gly Gly Ala Val Lys 1525 1530 1535 Leu Ser Val Ser Tyr Arg Asn Gly Thr Leu Phe Ile Met Val Met His 1540 1545 1550 Ile Lys Asp Leu Val Thr Glu Asp Gly Ala Asp Pro Asn Pro Tyr Val 1555 1560 1565 Lys Thr Tyr Leu Leu Pro Asp Thr His Lys Thr Ser Lys Arg Lys Thr 1570 1575 1580 Lys Ile Ser Arg Lys Thr Arg Asn Pro Thr Phe Asn Glu Met Leu Val 1585 1590 1595 1600 Tyr Ser Gly Tyr Ser Lys Glu Thr Leu Arg Gln Arg Glu Leu Gln Leu 1605 1610 1615 Ser Val Leu Ser Ala Glu Ser Leu Arg Glu Asn Phe Phe Leu Gly Gly 1620 1625 1630 Ile Thr Leu Pro Leu Lys Asp Phe Asn Leu Ser Lys Glu Thr Val Lys 1635 1640 1645 Trp Tyr Gln Leu Thr Ala Ala Thr Tyr Leu 1650 1655 137 amino acids amino acid single linear peptide not provided 14 Gln Gln Pro Ser Arg Asp Asn Pro His Glu Ile Gly Gln Ile Arg Leu 1 5 10 15 Ser Leu Gln Tyr Gln Arg Gly Val Leu Thr Val Met Ile His His Ala 20 25 30 Lys Gly Leu Pro Met Leu Gln Gly Gly Gln Glu Pro Asn Thr Tyr Val 35 40 45 Lys Cys Tyr Leu Lys Pro Asp Pro Lys Lys Glu Thr Lys Arg Lys Thr 50 55 60 Lys Val Val Arg Lys Thr Cys Val Pro Ser Phe Met Glu Thr Leu Glu 65 70 75 80 Tyr Arg Met Pro Leu Asn Ile Ile Gln Glu Arg Arg Leu Gln Val Thr 85 90 95 Val Trp Ser His Asp Thr Leu Gln Glu Asn Glu Leu Leu Gly Gly Phe 100 105 110 Asp Met Asp Leu Ser Lys Tyr Asp Leu Arg Gln Glu Leu Val Asp Trp 115 120 125 Tyr Arg Leu Gly Ala Val Ser Arg Asn 130 135 137 amino acids amino acid single linear peptide not provided 15 Val Pro Phe Ser Pro Thr Leu Gly Gln Ile Gly Gly Ala Val Lys Leu 1 5 10 15 Ser Val Ser Tyr Arg Asn Gly Thr Leu Phe Ile Met Val Met His Ile 20 25 30 Lys Asp Leu Val Thr Glu Asp Gly Ala Asp Pro Asn Pro Tyr Val Lys 35 40 45 Thr Tyr Leu Leu Pro Asp Thr His Lys Thr Ser Lys Arg Lys Thr Lys 50 55 60 Ile Ser Arg Lys Thr Arg Asn Pro Thr Phe Asn Glu Met Leu Val Tyr 65 70 75 80 Ser Gly Tyr Ser Lys Glu Thr Leu Arg Gln Arg Glu Leu Gln Leu Ser 85 90 95 Val Leu Ser Ala Glu Ser Leu Arg Glu Asn Phe Phe Leu Gly Gly Ile 100 105 110 Thr Leu Pro Leu Lys Asp Phe Asn Leu Ser Lys Glu Thr Val Lys Trp 115 120 125 Tyr Gln Leu Thr Ala Ala Thr Tyr Leu 130 135 140 amino acids amino acid single linear peptide not provided 16 Asn Ser Tyr Asp Ser Asp Glu Ala Thr Thr Leu Gly Ala Leu Glu Phe 1 5 10 15 Ser Leu Leu Tyr Asp Gln Asp Asn Ser Ser Leu His Cys Thr Ile Ile 20 25 30 Lys Ala Lys Gly Leu Lys Pro Met Asp Ser Asn Gly Leu Ala Asp Pro 35 40 45 Tyr Val Lys Leu His Leu Leu Pro Gly Ala Ser Lys Ser Asn Lys Leu 50 55 60 Arg Thr Lys Thr Leu Arg Asn Thr Arg Asn Pro Ile Trp Asn Glu Thr 65 70 75 80 Leu Val Tyr His Gly Ile Thr Asp Glu Asp Met Gln Arg Lys Thr Leu 85 90 95 Arg Ile Ser Val Cys Asp Glu Asp Lys Phe Gly His Asn Glu Phe Ile 100 105 110 Gly Glu Thr Arg Phe Ser Leu Lys Lys Leu lys Pro Asn Gln Arg Lys 115 120 125 Asn Phe Asn Ile Cys Leu Glu Arg Val Ile Pro Met 130 135 140 138 amino acids amino acid single linear peptide not provided 17 Gln Gly Gly Glu Lys Glu Glu Pro Glu Lys Leu Gly Asp Ile Cys Thr 1 5 10 15 Ser Leu Arg Tyr Val Pro Thr Ala Gly Lys Leu Thr Val Cys Ile Leu 20 25 30 Glu Ala Lys Asn Leu Lys Lys Met Asp Val Gly Gly Leu Ser Asp Pro 35 40 45 Tyr Val Lys Ile His Leu Met Gln Asn Gly Lys Arg Leu Lys Lys Lys 50 55 60 Lys Thr Thr Val Lys Lys Lys Thr Leu Asn Pro Tyr Phe Asn Glu Ser 65 70 75 80 Phe Ser Phe Glu Ile Pro Phe Glu Gln Ile Gln Lys Val Gln Val Val 85 90 95 Val Thr Val Leu Asp Tyr Asp Lys Leu Gly Lys Asn Glu Ala Ile Gly 100 105 110 Lys Ile Phe Val Gly Ser Asn Ala Thr Gly Thr Glu Leu Arg His Trp 115 120 125 Ser Asp Met Leu Ala Asn Pro Arg Arg Pro 130 135 136 amino acids amino acid single linear peptide not provided 18 Ser Leu Cys Gly Cys Asp His Thr Glu Arg Arg Gly Arg Ile Tyr Leu 1 5 10 15 Glu Ile Asn Val Lys Glu Asn Leu Leu Thr Val Gln Ile Lys Glu Gly 20 25 30 Arg Asn Leu Ile Pro Met Asp Pro Asn Gly Leu Ser Asp Pro Tyr Val 35 40 45 Lys Val Lys Leu Ile Pro Asp Asp Lys Asp Gln Ser Lys Lys Lys Thr 50 55 60 Arg Thr Ile Lys Ala Cys Leu Asn Pro Val Trp Asn Glu Thr Leu Thr 65 70 75 80 Tyr Asp Leu Lys Pro Glu Asp Lys Asp Arg Arg Ile Leu Ile Glu Val 85 90 95 Trp Asp Trp Asp Arg Thr Ser Arg Asn Asp Phe Met Gly Ala Leu Ser 100 105 110 Phe Gly Ile Ser Glu Ile Ile Lys Asn Pro Thr Asn Gly Trp Phe Lys 115 120 125 Leu Leu Thr Gln Asp Glu Gly Glu 130 135 171 amino acids amino acid single linear peptide not provided 19 Ala Ile Phe Lys Cys Gly Asp Asp Leu Gln Gln Asp Gln Leu Thr Ile 1 5 10 15 Gln Leu Ile Arg Ile Met Asn Lys Met Trp Leu Ala Glu Arg Leu Asp 20 25 30 Leu Lys Met Val Thr Phe Asn Cys Val Pro Thr Gly Tyr Lys Ser Gly 35 40 45 Met Ile Glu Leu Val Ser Glu Ala Glu Thr Leu Arg Lys Ile Gln Val 50 55 60 Glu Cys Gly Leu Thr Gly Ser Phe Lys Asp Arg Pro Ile Ala Glu Trp 65 70 75 80 Leu Gly Lys Gln Asn Pro Ser Pro Leu Glu Tyr Gln Ser Ala Val Arg 85 90 95 Asn Phe Thr Leu Ser Cys Ala Gly Tyr Ser Val Ala Thr Tyr Val Leu 100 105 110 Gly Ile Cys Asp Arg His Asn Asp Asn Ile Met Leu Lys Thr Ser Gly 115 120 125 His Leu Phe His Ile Asp Phe Gly Lys Phe Leu Gly Asp Ala Gln Met 130 135 140 Phe Gly Asn Phe Lys Arg Asp Arg Thr Pro Phe Val Leu Thr Ser Asp 145 150 155 160 Met Ala Tyr Val Ile Asn Gly Gly Asp Lys Pro 165 170 171 amino acids amino acid single linear peptide not provided 20 Val Met Phe Lys Val Gly Glu Asp Leu Arg Gln Asp Met Leu Ala Leu 1 5 10 15 Gln Met Ile Lys Ile Met Asp Lys Ile Trp Leu Lys Glu Gly Leu Asp 20 25 30 Leu Arg Met Val Ile Phe Arg Cys Leu Ser Thr Gly Arg Asp Arg Gly 35 40 45 Met Val Glu Leu Val Pro Ala Ser Asp Thr Leu Arg Lys Ile Gln Val 50 55 60 Glu Tyr Gly Val Thr Gly Ser Phe Lys Asp Lys Pro Leu Ala Glu Trp 65 70 75 80 Leu Arg Lys Tyr Asn Pro Ser Glu Glu Glu Tyr Glu Lys Ala Ser Glu 85 90 95 Asn Phe Ile Tyr Ser Cys Ala Gly Cys Cys Val Ala Thr Tyr Val Leu 100 105 110 Gly Ile Cys Asp Arg His Asn Asp Asn Ile Met Leu Arg Ser Thr Gly 115 120 125 His Met Phe His Ile Asp Phe Gly Lys Phe Leu Gly His Ala Gln Met 130 135 140 Phe Gly Ser Phe Lys Arg Asp Arg Ala Pro Phe Val Leu Thr Ser Asp 145 150 155 160 Met Ala Tyr Val Ile Asn Gly Gly Glu Lys Pro 165 170 171 amino acids amino acid single linear peptide not provided 21 Ile Ile Phe Lys Asn Gly Asp Asp Ile Arg Gln Asp Met Leu Thr Ile 1 5 10 15 Gln Ile Ile Arg Ile Met Glu Asn Ile Trp Gln Asn Gln Gly Leu Asp 20 25 30 Ile Arg Met Leu Pro Tyr Gly Cys Leu Ser Ile Gly Asp Cys Val Gly 35 40 45 Leu Ile Glu Val Val Arg Asn Ser His Thr Ile Met Gln Ile Gln Cys 50 55 60 Lys Gly Gly Leu Lys Gly Ala Leu Gln Phe Asn Ser His Thr Leu His 65 70 75 80 Gln Trp Leu Lys Asp Lys Asn Lys Gly Glu Ile Tyr Asp Ala Ala Ile 85 90 95 Asp Leu Phe Thr Arg Ser Cys Ala Gly Tyr Cys Val Ala Thr Phe Ile 100 105 110 Leu Gly Ile Gly Asp Arg His Asn Ser Asn Ile Met Val Lys Asp Asp 115 120 125 Gly Cys Leu Phe His Ile Asp Phe Gly His Phe Leu Asp His Lys Lys 130 135 140 Lys Lys Phe Gly Tyr Lys Glu Arg Val Pro Phe Val Leu Thr Gln Asp 145 150 155 160 Phe Leu Ile Val Ile Ser Lys Gly Ala Gln Glu 165 170 171 amino acids amino acid single linear peptide not provided 22 Val Ile Phe Lys Asn Gly Asp Asp Ile Arg Gln Asp Met Leu Thr Ile 1 5 10 15 Gln Met Ile Arg Leu Met Asp Leu Ile Trp Lys Glu Ala Gly Leu Asp 20 25 30 Ile Arg Met Leu Pro Tyr Gly Cys Leu Ala Thr Gly Asp Arg Ser Gly 35 40 45 Leu Ile Glu Val Val Ser Thr Ser Glu Thr Ile Ala Asp Ile Gln Leu 50 55 60 Asn Ser Ser Asn Val Ala Ala Ala Ala Ala Ala Phe Asn Lys Asp Ala 65 70 75 80 Leu Leu Asn Trp Leu Lys Glu Tyr Asn Ser Gly Asp Asp Leu Asp Arg 85 90 95 Ala Ile Glu Glu Phe Thr Leu Ser Cys Ala Gly Tyr Cys Val Ala Ser 100 105 110 Tyr Val Leu Gly Ile Gly Asp Arg His Ser Asp Asn Ile Met Val Lys 115 120 125 Lys Thr Gly Gln Leu Phe His Ile Asp Phe Gly His Ile Leu Gly Asn 130 135 140 Phe Lys Ser Lys Phe Gly Ile Lys Glu Arg Val Pro Phe Ile Leu Thr 145 150 155 160 Tyr Asp Phe Ile His Val Ile Gln Gln Gly Lys 165 170 171 amino acids amino acid single linear peptide not provided 23 Ile Ile Phe Lys His Gly Asp Asp Ile Arg Gln Asp Met Leu Ile Ile 1 5 10 15 Gln Ile Leu Arg Ile Met Glu Ser Ile Trp Glu Thr Glu Ser Leu Asp 20 25 30 Ile Cys Ile Leu Pro Tyr Gly Cys Ile Ser Thr Gly Asp Lys Ile Gly 35 40 45 Met Ile Glu Ile Val Lys Asp Ala Thr Thr Ile Ala Lys Ile Gln Gln 50 55 60 Ser Thr Val Gly Asn Thr Gly Ala Phe Lys Asp Glu Val Leu Asn His 65 70 75 80 Trp Leu Lys Glu Lys Ser Pro Thr Glu Glu Lys Glu Gln Ala Ala Val 85 90 95 Glu Arg Phe Val Tyr Ser Cys Ala Gly Tyr Cys Val Ala Thr Phe Val 100 105 110 Leu Gly Ile Gly Asp Arg His Asn Asp Asn Ile Met Ile Thr Glu Thr 115 120 125 Gly Asn Leu Phe His Ile Asp Phe Gly His Ile Leu Gly Asn Tyr Lys 130 135 140 Ser Phe Leu Gly Ile Asn Lys Arg Val Pro Phe Val Leu Thr Pro Asp 145 150 155 160 Phe Leu Phe Val Met Gly Thr Ser Gly Lys Lys 165 170 160 amino acids amino acid single linear peptide not provided 24 Leu Met Phe Lys Val Gly Asp Asp Leu Arg Gln Asp Gln Leu Val Val 1 5 10 15 Gln Ile Ile Ser Leu Met Asn Glu Leu Leu Lys Asn Glu Asn Val Asp 20 25 30 Leu Lys Leu Thr Pro Tyr Lys Ile Leu Ala Thr Gly Pro Gln Glu Gly 35 40 45 Ala Ile Glu Phe Ile Pro Asn Asp Thr Leu Ala Ser Ile Leu Ser Lys 50 55 60 Tyr His Gly Ile Leu Gly Tyr Leu Lys Leu His Tyr Pro Asp Glu Asn 65 70 75 80 Ala Thr Leu Gly Val Gln Gly Trp Val Leu Asp Asn Phe Val Lys Ser 85 90 95 Cys Ala Gly Tyr Cys Val Ile Thr Tyr Ile Leu Gly Val Gly Asp Arg 100 105 110 His Leu Asp Asn Leu Leu Val Thr Pro Asp Gly His Phe Phe His Ala 115 120 125 Asp Phe Gly Tyr Leu Gly Gln Asp Pro Lys Pro Phe Pro Pro Leu Met 130 135 140 Lys Leu Pro Pro Gln Ile Ile Glu Ala Phe Gly Gly Ala Glu Ser Ser 145 150 155 160 179 amino acids amino acid single linear peptide not provided 25 Val Ile Ala Lys Thr Gly Asp Asp Leu Arg Gln Glu Ala Phe Ala Tyr 1 5 10 15 Gln Met Ile Gln Ala Met Ala Asn Ile Trp Val Lys Glu Lys Val Asp 20 25 30 Val Trp Val Lys Arg Met Lys Ile Leu Ile Thr Ser Ala Asn Thr Gly 35 40 45 Leu Val Glu Thr Ile Thr Asn Ala Met Ser Val His Ser Ile Lys Lys 50 55 60 Ala Leu Thr Lys Lys Met Ile Glu Asp Ala Glu Leu Asp Asp Lys Gly 65 70 75 80 Gly Ile Ala Ser Leu Asn Asp His Phe Leu Arg Ala Phe Gly Asn Pro 85 90 95 Asn Gly Phe Lys Tyr Arg Arg Ala Gln Asp Asn Phe Ala Ser Ser Leu 100 105 110 Ala Ala Tyr Ser Val Ile Cys Tyr Leu Leu Gln Val Lys Asp Arg His 115 120 125 Asn Gly Asn Ile Met Ile Asp Asn Glu Gly His Val Ser His Ile Asp 130 135 140 Phe Gly Phe Met Leu Ser Asn Ser Pro Gly Ser Val Gly Phe Glu Ala 145 150 155 160 Ala Pro Phe Lys Leu Thr Tyr Glu Tyr Ile Glu Leu Leu Gly Gly Val 165 170 175 Glu Gly Glu 184 amino acids amino acid single linear peptide not provided 26 Tyr Val Leu Lys Gly His Glu Asp Ile Arg Gln Asp Ser Leu Val Met 1 5 10 15 Gln Leu Phe Gly Leu Val Asn Thr Leu Leu Gln Asn Asp Ala Glu Cys 20 25 30 Phe Arg Arg His Leu Asp Ile Gln Gln Tyr Pro Ala Ile Pro Leu Ser 35 40 45 Pro Lys Ser Gly Leu Leu Gly Trp Val Pro Asn Ser Asp Thr Phe His 50 55 60 Val Leu Ile Arg Glu His Arg Glu Ala Lys Lys Ile Pro Leu Asn Ile 65 70 75 80 Glu His Trp Val Met Leu Gln Met Ala Pro Asp Tyr Asp Asn Leu Thr 85 90 95 Leu Leu Gln Lys Val Glu Val Phe Thr Tyr Ala Leu Asn Asn Tyr Thr 100 105 110 Arg Ser Leu Ala Val Met Ser Met Thr Gly Tyr Ile Leu Gly Leu Gly 115 120 125 Asp Arg His Pro Ser Asn Leu Met Leu Asp Arg Ile Thr Gly Lys Val 130 135 140 Ile His Ile Asp Phe Gly Asp Cys Phe Glu Ala Ala Ile Leu Arg Glu 145 150 155 160 Lys Phe Pro Glu Lys Val Pro Phe Arg Leu Thr Arg Met Leu Thr Tyr 165 170 175 Ala Met Glu Val Ser Gly Ile Glu 180 6831 base pairs nucleic acid single linear DNA (genomic) not provided CDS 148..5775 27 GCTTGTTGCA TTCCGTTTTG TGTTATTTCG TGCTCCCCGT CAAGGGAAAA CCTCAACCAA 60 AAAGAGACTA GCAACGGGTG TAAAAAGCAG CGGAGGTGAC ACCTCAAAAA GCAACTCAAC 120 GGACCGGACG CTTTAGACGA GGGGATA ATG TCA AAT CAA GCG CAT ATC GAC 171 Met Ser Asn Gln Ala His Ile Asp 1 5 TAC GAC AAA CAA TTC CAG GAT GAC CTG GCC AAG GCG ACC GCC CTG AGT 219 Tyr Asp Lys Gln Phe Gln Asp Asp Leu Ala Lys Ala Thr Ala Leu Ser 10 15 20 CTA GAG CAG CAT GCC CTC GAT GAC TAC AGG CGA AAC AAG AAG TAC GGC 267 Leu Glu Gln His Ala Leu Asp Asp Tyr Arg Arg Asn Lys Lys Tyr Gly 25 30 35 40 TCC GGG TAT CAG CAA AGC TCC ACC GTT GCT GGC CGA GAT TAC CAG GCG 315 Ser Gly Tyr Gln Gln Ser Ser Thr Val Ala Gly Arg Asp Tyr Gln Ala 45 50 55 GCG CAA CGT AGT CAG AGC CTA CAT CAA CCA CGA CGG CAC TCG GAG GTG 363 Ala Gln Arg Ser Gln Ser Leu His Gln Pro Arg Arg His Ser Glu Val 60 65 70 CAT CAG GTG GCC ATC AGT CCG GAG AAT GCG GAA CGA TCG CGC ACA CCG 411 His Gln Val Ala Ile Ser Pro Glu Asn Ala Glu Arg Ser Arg Thr Pro 75 80 85 CCG GCC CAG GGA ACG GAT AAC GAT CTG ATC TGC CTC GCA AGT CCC ACC 459 Pro Ala Gln Gly Thr Asp Asn Asp Leu Ile Cys Leu Ala Ser Pro Thr 90 95 100 AGC AAG CAG CCA GAG AGT AGC AGT CCC TTT GGC AAA CTT ATA GAG GAT 507 Ser Lys Gln Pro Glu Ser Ser Ser Pro Phe Gly Lys Leu Ile Glu Asp 105 110 115 120 CTG CAG CGG ATG CAG CCG ACC AAT CCG CAG TCG GCC CTG GTG CCA ATG 555 Leu Gln Arg Met Gln Pro Thr Asn Pro Gln Ser Ala Leu Val Pro Met 125 130 135 GGT CCA GTT GCG TCG GCT TCG ATT CCT CCT CAA TAC GGC TTC CCA CCT 603 Gly Pro Val Ala Ser Ala Ser Ile Pro Pro Gln Tyr Gly Phe Pro Pro 140 145 150 CAT CAG CAA CGT CCA ACG GCT GCT CAG CCC ACA CCG TAC GGC ATG GTT 651 His Gln Gln Arg Pro Thr Ala Ala Gln Pro Thr Pro Tyr Gly Met Val 155 160 165 GCA GGT GGA GTT GTT GGT GGA CCG GCT TAC GGT GAC CTG CAG TTG GTG 699 Ala Gly Gly Val Val Gly Gly Pro Ala Tyr Gly Asp Leu Gln Leu Val 170 175 180 CCT TAC CAA CCA GCT GCC CAG CAA CAG AGG CCA CTA AAC AGC GAG GAG 747 Pro Tyr Gln Pro Ala Ala Gln Gln Gln Arg Pro Leu Asn Ser Glu Glu 185 190 195 200 CTG CAG CGG CTG TAC AGC ATG CCC GCT CAA ATG GCC GTG GTT CCA GTG 795 Leu Gln Arg Leu Tyr Ser Met Pro Ala Gln Met Ala Val Val Pro Val 205 210 215 CCG CAG CCA AAC GCC TAT ATG TAC TAT CCC GGA GCT GTG GTT ACT CCA 843 Pro Gln Pro Asn Ala Tyr Met Tyr Tyr Pro Gly Ala Val Val Thr Pro 220 225 230 TAC ACG GCT CCC ATT GTT CCC GGA TCG GCT GCT TTT ATG CCG CCG CAG 891 Tyr Thr Ala Pro Ile Val Pro Gly Ser Ala Ala Phe Met Pro Pro Gln 235 240 245 TAT CCC GCA CAG GGA TAT GGC TTT GGA GGT GCT TAC ACG CAC ATG GAT 939 Tyr Pro Ala Gln Gly Tyr Gly Phe Gly Gly Ala Tyr Thr His Met Asp 250 255 260 TTG CGT CGA CCC CAA TCG CAA CCA GCT CCC CAA CAA ACA GCA CCG ACA 987 Leu Arg Arg Pro Gln Ser Gln Pro Ala Pro Gln Gln Thr Ala Pro Thr 265 270 275 280 ACA AGT CAT CAT CAC AGC CAA CCG TCC AAC CAT TCC ACT TCC TCC CCC 1035 Thr Ser His His His Ser Gln Pro Ser Asn His Ser Thr Ser Ser Pro 285 290 295 GCA GAG GCC AAT GGA GTA GCC TTC CCA GCG CGT CGC CAA GTG CCC TCG 1083 Ala Glu Ala Asn Gly Val Ala Phe Pro Ala Arg Arg Gln Val Pro Ser 300 305 310 ACT GTC GGG GTT AGC TCT AGT AGC CAC ACT GGA AAC AAT GGT CAT TCC 1131 Thr Val Gly Val Ser Ser Ser Ser His Thr Gly Asn Asn Gly His Ser 315 320 325 TCG GTC CCA CGC AGG GGC AAC GAT TTG ATC GAC CTC AAC CAC GAG GAC 1179 Ser Val Pro Arg Arg Gly Asn Asp Leu Ile Asp Leu Asn His Glu Asp 330 335 340 TAC TCC CGT GTG AGT GTG CTG GAG GCA TTC GAT CCC CTG CTA AAC GAC 1227 Tyr Ser Arg Val Ser Val Leu Glu Ala Phe Asp Pro Leu Leu Asn Asp 345 350 355 360 AAT ACT GGC AAC GAC ACC GCC TCC GAC AGC ACT TCC TAC TAT GCG GAA 1275 Asn Thr Gly Asn Asp Thr Ala Ser Asp Ser Thr Ser Tyr Tyr Ala Glu 365 370 375 TAC GAT CCC TTT GAT TTT CTG TAC AGC GGA GAT GCA GCA ACC CAA TAT 1323 Tyr Asp Pro Phe Asp Phe Leu Tyr Ser Gly Asp Ala Ala Thr Gln Tyr 380 385 390 TCC GAT CCA ATG TAT GAG GCA GTC AAC AGG TGG GAC AAA ACT GTG GCC 1371 Ser Asp Pro Met Tyr Glu Ala Val Asn Arg Trp Asp Lys Thr Val Ala 395 400 405 ACC GTG AGT CCG AAT GTT GGT CTA ATC GGT TGG CGC CAA GAT TTT CTG 1419 Thr Val Ser Pro Asn Val Gly Leu Ile Gly Trp Arg Gln Asp Phe Leu 410 415 420 AGC CAG CCA TCT ACA TCT TCA TCG CAA TAT GGT GTT GCG CCG CCA GAG 1467 Ser Gln Pro Ser Thr Ser Ser Ser Gln Tyr Gly Val Ala Pro Pro Glu 425 430 435 440 GAG AGT CTG AAG CTT GCG GAG AAC GGA TCT GAA ACT ATC TCG CCT CCT 1515 Glu Ser Leu Lys Leu Ala Glu Asn Gly Ser Glu Thr Ile Ser Pro Pro 445 450 455 CCG CCG TTG CCG CCC CGG AAC CAG CAG TGC TAT GAA TCA AAC CAG GCA 1563 Pro Pro Leu Pro Pro Arg Asn Gln Gln Cys Tyr Glu Ser Asn Gln Ala 460 465 470 GCC ATG CCG GTC TCC AGG CCT CCT CAG TCT TCT GTT TTG ACG GAC AGC 1611 Ala Met Pro Val Ser Arg Pro Pro Gln Ser Ser Val Leu Thr Asp Ser 475 480 485 TAC ACC TCC AGC ATT CCG GCC AAC GTG GTG CTG GAC CGG CGG AAA ACT 1659 Tyr Thr Ser Ser Ile Pro Ala Asn Val Val Leu Asp Arg Arg Lys Thr 490 495 500 TGT ACA CGA CTG TAC GAA TTG ATC AGC GAC CAG CGC ACT GAT GAT CCC 1707 Cys Thr Arg Leu Tyr Glu Leu Ile Ser Asp Gln Arg Thr Asp Asp Pro 505 510 515 520 GAA CTT TTG GAA TTT TAC CAC ATG GTA AAG GAG GTG AGG GCA CGC TAT 1755 Glu Leu Leu Glu Phe Tyr His Met Val Lys Glu Val Arg Ala Arg Tyr 525 530 535 CCG CAT GAC GAT GCG CCC ACC AAT GTG GGA CAT GTT GTG GCC GCC GAG 1803 Pro His Asp Asp Ala Pro Thr Asn Val Gly His Val Val Ala Ala Glu 540 545 550 TTT AAT TAT CAC TAC ATG ATG GAC ACC AGC ATC AAA GTG ATT GTG CAT 1851 Phe Asn Tyr His Tyr Met Met Asp Thr Ser Ile Lys Val Ile Val His 555 560 565 CCG GCT CTA AAT ACA CTT CAA TCA ACG GTC CTG GCT GCG TCC ATG GGC 1899 Pro Ala Leu Asn Thr Leu Gln Ser Thr Val Leu Ala Ala Ser Met Gly 570 575 580 AAG GAA CAG GTG AAG GGA TAT GGA ATG CCA GTA ACA TTC ACT TGC GAT 1947 Lys Glu Gln Val Lys Gly Tyr Gly Met Pro Val Thr Phe Thr Cys Asp 585 590 595 600 ATT GAT TCG GTT GTG GCA CAG GTG GTG GCA CAA GCT TTG GCC TCG CTG 1995 Ile Asp Ser Val Val Ala Gln Val Val Ala Gln Ala Leu Ala Ser Leu 605 610 615 GAG GGA CAA GTC AAG GGT ACC GTC ACA GAT TAT GCG GTC AAG CCC ATT 2043 Glu Gly Gln Val Lys Gly Thr Val Thr Asp Tyr Ala Val Lys Pro Ile 620 625 630 GGT CTT CTG GAG TGG CTG GCA CCC ACC TCG AGA CTG AGT CAG CTG GAG 2091 Gly Leu Leu Glu Trp Leu Ala Pro Thr Ser Arg Leu Ser Gln Leu Glu 635 640 645 TGC GTG CAC AAT AGC TTC CAA TTG GAG AAG GAT GTA CAT TTG GGC CTG 2139 Cys Val His Asn Ser Phe Gln Leu Glu Lys Asp Val His Leu Gly Leu 650 655 660 TGC CTT AGT ACG GCG GCA AAC ATG CAG GCT ATT GCA CGA ACA GAG CGG 2187 Cys Leu Ser Thr Ala Ala Asn Met Gln Ala Ile Ala Arg Thr Glu Arg 665 670 675 680 GAT GAT GAG CAC GAT GCG GAT TTG CTG CCG GAA CAT CCT CTT CCA AAC 2235 Asp Asp Glu His Asp Ala Asp Leu Leu Pro Glu His Pro Leu Pro Asn 685 690 695 GAG GTT GTG CAA ATT GTG ACC TAC GAC AAT ATG ATG ATA CTC ATC GAA 2283 Glu Val Val Gln Ile Val Thr Tyr Asp Asn Met Met Ile Leu Ile Glu 700 705 710 ACG CTG GAG ATG GAG ATT GAC AAG CTG GAA TCG GCG GCC GAC GGA GTA 2331 Thr Leu Glu Met Glu Ile Asp Lys Leu Glu Ser Ala Ala Asp Gly Val 715 720 725 CCC GGA CGG AGT GTC GTG AGC TGC TCC GGA GTT GTC CAA GCA GTG AAG 2379 Pro Gly Arg Ser Val Val Ser Cys Ser Gly Val Val Gln Ala Val Lys 730 735 740 GCC ATA TGC GCA CTG CTC GGT TCA ATC GAC ACA ATG GAA ATT GCA CGA 2427 Ala Ile Cys Ala Leu Leu Gly Ser Ile Asp Thr Met Glu Ile Ala Arg 745 750 755 760 TGT GTT GCC GAT CTG AAG CGC ATT TGC GAG GTG GAG CAA AAG AAG TAC 2475 Cys Val Ala Asp Leu Lys Arg Ile Cys Glu Val Glu Gln Lys Lys Tyr 765 770 775 TCG ACG GGC GCT AGC AAC CCA GAG ATT GTG AGT GAC TAT GGT GAT TAC 2523 Ser Thr Gly Ala Ser Asn Pro Glu Ile Val Ser Asp Tyr Gly Asp Tyr 780 785 790 GCT CAA GTT GTA CTC CGC CCG CGC TCC ATG CTG GAG CAG ATC AAG GTC 2571 Ala Gln Val Val Leu Arg Pro Arg Ser Met Leu Glu Gln Ile Lys Val 795 800 805 AAG TGC AAC GAG CTG CGA GAT GCA GTG CAA GAG CTG GTT GAA TTG TAT 2619 Lys Cys Asn Glu Leu Arg Asp Ala Val Gln Glu Leu Val Glu Leu Tyr 810 815 820 GCG AAT GTT TTC CGG GTG GCA TTC TCC GTG AAG ACG CCC GAT TAC TCA 2667 Ala Asn Val Phe Arg Val Ala Phe Ser Val Lys Thr Pro Asp Tyr Ser 825 830 835 840 ACA ACA CCC ATA CCC ATT TCC TGC GTG TCC AAA CCA ATT GTG GTA TGC 2715 Thr Thr Pro Ile Pro Ile Ser Cys Val Ser Lys Pro Ile Val Val Cys 845 850 855 ATT AGC TGC CTA CAC AGG CCG CTG CCG AAT TGG AAG TTC GAC GAT TAT 2763 Ile Ser Cys Leu His Arg Pro Leu Pro Asn Trp Lys Phe Asp Asp Tyr 860 865 870 TCC CTG TGC GTA CAA ATC GTT TAT GGA ACG CGC CTG CTG TCG AAG CCG 2811 Ser Leu Cys Val Gln Ile Val Tyr Gly Thr Arg Leu Leu Ser Lys Pro 875 880 885 AAT GTG CTG ACC TGC TCC AAC GAT ACA AGT GGA GGC CTG TTT CCT CGT 2859 Asn Val Leu Thr Cys Ser Asn Asp Thr Ser Gly Gly Leu Phe Pro Arg 890 895 900 CTT AAC TTC AGT GCC TGG CTG ACT TTC GAT CAG CAT CCC ATC TGC ACT 2907 Leu Asn Phe Ser Ala Trp Leu Thr Phe Asp Gln His Pro Ile Cys Thr 905 910 915 920 CTG CCC AGG GAG GCG CGC CTT ACG TTC GTG TTG TAT GGA AAA CAG GCG 2955 Leu Pro Arg Glu Ala Arg Leu Thr Phe Val Leu Tyr Gly Lys Gln Ala 925 930 935 GCC AGC GAA GGC GAA CCC AAC GCC GAT CAG AAT GGA GAG AGG CGT CAG 3003 Ala Ser Glu Gly Glu Pro Asn Ala Asp Gln Asn Gly Glu Arg Arg Gln 940 945 950 GTG ACC ACT GAA CTG GGT TGG TGT TCG ATC CAA CTG TTT GAC TTT AAG 3051 Val Thr Thr Glu Leu Gly Trp Cys Ser Ile Gln Leu Phe Asp Phe Lys 955 960 965 CGA GTG ATG ATC TGC GGC CCC TAC TTA CTG TCT TTA TGG CCA CCA ATG 3099 Arg Val Met Ile Cys Gly Pro Tyr Leu Leu Ser Leu Trp Pro Pro Met 970 975 980 ACG GAC AAA ATG CTT GGA CCA GCT CCG GCT CGA GGC TGT CAT CCG CAA 3147 Thr Asp Lys Met Leu Gly Pro Ala Pro Ala Arg Gly Cys His Pro Gln 985 990 995 1000 CCC GAC TTT TGC CCC GTT TTG AGC ATT GAA GTA CCT CCG TAT GGA GGA 3195 Pro Asp Phe Cys Pro Val Leu Ser Ile Glu Val Pro Pro Tyr Gly Gly 1005 1010 1015 CGC ATT GAG TTT CCT GAG CAC CAG GAG GTG CCA AAA CCT GCA CCA CAC 3243 Arg Ile Glu Phe Pro Glu His Gln Glu Val Pro Lys Pro Ala Pro His 1020 1025 1030 TAC GAT TTT GCC TCT CTG GAT GCC AAT CTT CAA GAG GAG CTG CTG GAC 3291 Tyr Asp Phe Ala Ser Leu Asp Ala Asn Leu Gln Glu Glu Leu Leu Asp 1035 1040 1045 ACC GCA GAG CTG GGC TAC ACA GGA GCC ACA GAA CGA CGT GAA GTG TTC 3339 Thr Ala Glu Leu Gly Tyr Thr Gly Ala Thr Glu Arg Arg Glu Val Phe 1050 1055 1060 TGG GAA AAA CGG CTC TAC CTG CAG AGC TAT CCC AAT GCC CTG CCA AAG 3387 Trp Glu Lys Arg Leu Tyr Leu Gln Ser Tyr Pro Asn Ala Leu Pro Lys 1065 1070 1075 1080 GTT CTT CAT GCC GCT CAC AGT TGG GAT TAT GCC AAT TTG ATC GAT TTG 3435 Val Leu His Ala Ala His Ser Trp Asp Tyr Ala Asn Leu Ile Asp Leu 1085 1090 1095 CAT GCG CTG CTG CAC TCC TGG GCA CCA CTC TCG CCA TTG CAG TCG TTG 3483 His Ala Leu Leu His Ser Trp Ala Pro Leu Ser Pro Leu Gln Ser Leu 1100 1105 1110 GAG TTA CTT CTG CCA CGA TAT CCG GAT GCT AAG GTT CGC GAG AAA GCC 3531 Glu Leu Leu Leu Pro Arg Tyr Pro Asp Ala Lys Val Arg Glu Lys Ala 1115 1120 1125 GTG GAG TGG ATC TCC AAG ATG CCC AAC GAC CAG CTC GTC GAC TTT CTG 3579 Val Glu Trp Ile Ser Lys Met Pro Asn Asp Gln Leu Val Asp Phe Leu 1130 1135 1140 CCT CAA TTG GTG CAA AGT TTA AAA CAT GAC ACA TAC GAA GGC TCG GCA 3627 Pro Gln Leu Val Gln Ser Leu Lys His Asp Thr Tyr Glu Gly Ser Ala 1145 1150 1155 1160 ATG GCT CGA TTC TTG CTG TCC AAA TGC CTG GAG TCA CCG CGC TTT GCC 3675 Met Ala Arg Phe Leu Leu Ser Lys Cys Leu Glu Ser Pro Arg Phe Ala 1165 1170 1175 CAT CAC ATG TAT TGG CTG CTT GTA CAC AGT CTG CCT GAC GAT CCC CAC 3723 His His Met Tyr Trp Leu Leu Val His Ser Leu Pro Asp Asp Pro His 1180 1185 1190 AAC TCT ATT GGA GCA GCG ATG GTG GAT CAG GAG TAT GAC GAG TCT CAG 3771 Asn Ser Ile Gly Ala Ala Met Val Asp Gln Glu Tyr Asp Glu Ser Gln 1195 1200 1205 GTT ACC CAG GTC CGT TAC TAC CGC CGG AAC AAA ATG ATG CTG CGT GCT 3819 Val Thr Gln Val Arg Tyr Tyr Arg Arg Asn Lys Met Met Leu Arg Ala 1210 1215 1220 TTA ATG GCG ATT TGC GGC GAA AAG ATG CTT CAG CGA TTT ATG TAC CAG 3867 Leu Met Ala Ile Cys Gly Glu Lys Met Leu Gln Arg Phe Met Tyr Gln 1225 1230 1235 1240 CAC CGA ATG TGT CAG AAA CTT ACT ACT ATT GCG GAG TCG GTT AAA GAG 3915 His Arg Met Cys Gln Lys Leu Thr Thr Ile Ala Glu Ser Val Lys Glu 1245 1250 1255 GCT AAG GAG TCG ATG CGT CAA AAA AGC CTA GCC GCA GGC ATG GAC GAG 3963 Ala Lys Glu Ser Met Arg Gln Lys Ser Leu Ala Ala Gly Met Asp Glu 1260 1265 1270 GTG CAC CAA GAC TTA CTG GAG CAA CCC ACT TGC CTA CCG CTG GGA CCA 4011 Val His Gln Asp Leu Leu Glu Gln Pro Thr Cys Leu Pro Leu Gly Pro 1275 1280 1285 GAA CTG GAG GTA ACT GGA GTG AGT GTG CGT AAC TGT AGC TAC TTT AAC 4059 Glu Leu Glu Val Thr Gly Val Ser Val Arg Asn Cys Ser Tyr Phe Asn 1290 1295 1300 TCC AAC ACG CTG CCG CTG AAG ATC AAC TTT GTG GGA CCT GAT GCC GAA 4107 Ser Asn Thr Leu Pro Leu Lys Ile Asn Phe Val Gly Pro Asp Ala Glu 1305 1310 1315 1320 TCT TTA CCG GCT ATC TTT AAG TGC GGA GAT GAC TTG CAG CAG GAT CAG 4155 Ser Leu Pro Ala Ile Phe Lys Cys Gly Asp Asp Leu Gln Gln Asp Gln 1325 1330 1335 TTA ACT ATA CAG CTA ATT AGG ATT ATG AAC AAA ATG TGG TTG GCC GAA 4203 Leu Thr Ile Gln Leu Ile Arg Ile Met Asn Lys Met Trp Leu Ala Glu 1340 1345 1350 CGA TTG GAC CTG AAG ATG GTC ACC TTT AAT TGT GTG CCT ACG GGA TAC 4251 Arg Leu Asp Leu Lys Met Val Thr Phe Asn Cys Val Pro Thr Gly Tyr 1355 1360 1365 AAG AGC GGT ATG ATT GAG CTG GTT AGC GAG GCG GAA ACG TTG AGA AAA 4299 Lys Ser Gly Met Ile Glu Leu Val Ser Glu Ala Glu Thr Leu Arg Lys 1370 1375 1380 ATT CAA GTA GAG TGC GGT CTG ACG GGG TCC TTT AAG GAT CGC CCG ATC 4347 Ile Gln Val Glu Cys Gly Leu Thr Gly Ser Phe Lys Asp Arg Pro Ile 1385 1390 1395 1400 GCT GAG TGG TTA GGC AAG CAG AAT CCC AGT CCT CTC GAG TAC CAG AGT 4395 Ala Glu Trp Leu Gly Lys Gln Asn Pro Ser Pro Leu Glu Tyr Gln Ser 1405 1410 1415 GCT GTG CGA AAT TTT ACG CTA TCC TGT GCT GGA TAC AGT GTG GCC ACG 4443 Ala Val Arg Asn Phe Thr Leu Ser Cys Ala Gly Tyr Ser Val Ala Thr 1420 1425 1430 TAT GTG CTA GGC ATC TGT GAT CCC CAC AAT GAC AAC ATC ATG TTA AAG 4491 Tyr Val Leu Gly Ile Cys Asp Pro His Asn Asp Asn Ile Met Leu Lys 1435 1440 1445 ACT TCG GGT CAC TTG TTT CAC ATT GAC TTT GGC AAG TTT CTT GGC GAT 4539 Thr Ser Gly His Leu Phe His Ile Asp Phe Gly Lys Phe Leu Gly Asp 1450 1455 1460 GCT CAG ATG TTT GGA AAC TTT AAG AGA GAT CGC ACT CCA TTT GTC CTG 4587 Ala Gln Met Phe Gly Asn Phe Lys Arg Asp Arg Thr Pro Phe Val Leu 1465 1470 1475 1480 ACT TCC GAC ATG GCT TAT GTC ATA AAT GGC GGC GAT AAG CCC TCC ACA 4635 Thr Ser Asp Met Ala Tyr Val Ile Asn Gly Gly Asp Lys Pro Ser Thr 1485 1490 1495 GAC TTT CAC TAT TTC GTG GAC CTA TGT TGT CGA GCC TTT AAT ATC GTG 4683 Asp Phe His Tyr Phe Val Asp Leu Cys Cys Arg Ala Phe Asn Ile Val 1500 1505 1510 CGG AAA AAT GCT GAT CTA CTC TTG CAC ACC CTG GCC CAC ATG GCT ACA 4731 Arg Lys Asn Ala Asp Leu Leu Leu His Thr Leu Ala His Met Ala Thr 1515 1520 1525 GCA GGC ATG CCG GGA GTA AAC TCC AAT GCT GTG CAA TAT GTA CGA CGC 4779 Ala Gly Met Pro Gly Val Asn Ser Asn Ala Val Gln Tyr Val Arg Arg 1530 1535 1540 GCC CTA TTG CCA TCT CAA TCG AAT CCC GAG GCA GCT GCC ACA TTT GCC 4827 Ala Leu Leu Pro Ser Gln Ser Asn Pro Glu Ala Ala Ala Thr Phe Ala 1545 1550 1555 1560 AAG ATG ATT CAA TCC TCT TTG AAA AGC TGG TTC ACG CAA TTC AAT TTC 4875 Lys Met Ile Gln Ser Ser Leu Lys Ser Trp Phe Thr Gln Phe Asn Phe 1565 1570 1575 TTT CTG CAC AAT CTG GCC CAG ACG CGT TTC ACC CCA GAC GAG GGA TCA 4923 Phe Leu His Asn Leu Ala Gln Thr Arg Phe Thr Pro Asp Glu Gly Ser 1580 1585 1590 GGA GAG CTG CTA TCG TTC GTG CCA CGA AAA TAT ACA ATG CAG CAG GAT 4971 Gly Glu Leu Leu Ser Phe Val Pro Arg Lys Tyr Thr Met Gln Gln Asp 1595 1600 1605 GGT CGC TTG AAG ATT GTA AAG GTG GTG TGT TTC CAG AAG CAT TAC AGC 5019 Gly Arg Leu Lys Ile Val Lys Val Val Cys Phe Gln Lys His Tyr Ser 1610 1615 1620 ATG GAA AAG TTT TAT ATG TAT ATT CTG GAA GTG ACG CGA CAT GGA CAG 5067 Met Glu Lys Phe Tyr Met Tyr Ile Leu Glu Val Thr Arg His Gly Gln 1625 1630 1635 1640 CCC GAT CCG ACA CAT TTG TTC CGG TCA TAT CGG GAA TTC ACG GAA TTC 5115 Pro Asp Pro Thr His Leu Phe Arg Ser Tyr Arg Glu Phe Thr Glu Phe 1645 1650 1655 CAT CAG AAG TTA TGC ATG CAC TTT CCT TTG GTT AAA CTG CAC AGT CTG 5163 His Gln Lys Leu Cys Met His Phe Pro Leu Val Lys Leu His Ser Leu 1660 1665 1670 CCG GCT GGT GTG CAT GTG GGC CGT TCC AAT ATC AAA TCC GTG GCA GAA 5211 Pro Ala Gly Val His Val Gly Arg Ser Asn Ile Lys Ser Val Ala Glu 1675 1680 1685 AAA CGA CTA CCT CTT ATA CAG CGA TTT TTG AAA TCG TTG TTC GAT GCG 5259 Lys Arg Leu Pro Leu Ile Gln Arg Phe Leu Lys Ser Leu Phe Asp Ala 1690 1695 1700 TCC GAG GAA ATA GCC CAT TCC GAG CTC GTT TAC ACA TTC TTT CAC CCG 5307 Ser Glu Glu Ile Ala His Ser Glu Leu Val Tyr Thr Phe Phe His Pro 1705 1710 1715 1720 CTG CTG CGC GAT CAG CAG GAA GCC AAG CTT GGG ATG CCG AAG ATA AAG 5355 Leu Leu Arg Asp Gln Gln Glu Ala Lys Leu Gly Met Pro Lys Ile Lys 1725 1730 1735 GAG GTG AAG CAA CAA CCG TCG CGG GAT AAT CCC CAC GAG ATT GGC CAA 5403 Glu Val Lys Gln Gln Pro Ser Arg Asp Asn Pro His Glu Ile Gly Gln 1740 1745 1750 ATA CGA CTA TCG CTG CAA TAT CAA CGC GGC GTA CTT ACT GTG ATG ATA 5451 Ile Arg Leu Ser Leu Gln Tyr Gln Arg Gly Val Leu Thr Val Met Ile 1755 1760 1765 CAC CAC GCC AAA GAA CTG CCC ATG TTA CAG GGC GGT CAG GAG CCC AAC 5499 His His Ala Lys Glu Leu Pro Met Leu Gln Gly Gly Gln Glu Pro Asn 1770 1775 1780 ACA TAT GTG AAG TGC TAC CTA AAA CCG GAT CCC AAA AAG GAG ACC AAA 5547 Thr Tyr Val Lys Cys Tyr Leu Lys Pro Asp Pro Lys Lys Glu Thr Lys 1785 1790 1795 1800 CGC AAG ACC AAA GTG GTG CGC AAG ACC TGT GTG CCC AGT TTC ATG GAA 5595 Arg Lys Thr Lys Val Val Arg Lys Thr Cys Val Pro Ser Phe Met Glu 1805 1810 1815 ACT TTG GAG TAC CGA ATG CCA CTG AAT ATT ATT CAA GAG CGC CGC CTT 5643 Thr Leu Glu Tyr Arg Met Pro Leu Asn Ile Ile Gln Glu Arg Arg Leu 1820 1825 1830 CAG GTT ACG GTT TGG TCG CAC GAC ACC CTG CAG GAG AAC GAG CTG CTT 5691 Gln Val Thr Val Trp Ser His Asp Thr Leu Gln Glu Asn Glu Leu Leu 1835 1840 1845 GGA GGC TTC GAT ATG GAT CTG TCG AAG TAC GAC CTG CGA CAG GAG CTC 5739 Gly Gly Phe Asp Met Asp Leu Ser Lys Tyr Asp Leu Arg Gln Glu Leu 1850 1855 1860 GTC GAC TGG TAT CGC CTG GGC GCG GTG TCC AGG AAC TGACCAGATC 5785 Val Asp Trp Tyr Arg Leu Gly Ala Val Ser Arg Asn 1865 1870 1875 CTAGGGACGA GCTATTTTGA ACCTCTTGGG ACACTCTGCC TACCGACAAT CAGGCCTAGG 5845 ATAATGCCAA TACTAATATA TGTTGTGCCT GTCTTCTTTC GATCGCAATA ATACTTACTT 5905 ACTCGAAGTG ATTGTACATT CCATATACCA ATATTAAAAA TAACATAACA GTAGTAGTAT 5965 TATTTCGTAA AATGTGTGCC TCAAATGTAA ATATTTTATA ATGACCGCAA ACAACATTCT 6025 TTTGGACATC TGAATGTAAT TATAACTATA AAGTATAGAA CATGCTTACT CTATTTACAT 6085 TTAAAATCAA TCAATTTTAT TGTGCACCTT GGGAATTCAG AAAATGAATT ATATTGGTAG 6145 TTTGTTTGAA TCGTTCTGTC GTCGGCACCT GGCAATTGTT CTTTTGAAGT AGTTAAATAT 6205 AAAAGTTCAG TATTATGGCT TAAATTCTAT AAGAGATTAT TAAAAACCTT CTAGCTCGCT 6265 GGTCTGTAAT ATCTAAAATT AAAACTTGCA CGAAGAATAA TCATTACTAA CTTTTTTGCA 6325 CTTTTCTAAT TACTTAAAGT AAAAAGAGAA CTAAAATTTC CTAAAGAAAT TAGGCATTGC 6385 AAGCAGAATA ACGCACAGAT ACAGATTCTT TCTGATTGTA TTTTGTTTGT CACTTAATAT 6445 TCACAAAATT GCTTTGTCAA AAGCAAACGC CTGACTGGGT CTAAAACAAA TTTACAAAGT 6505 TATAGGGAAT TACTATCAGA GAGAACAAGA ACTAAAAGTG TCTTAAAAAT GAAACGAATA 6565 TTGTAAAATA TATAATAAGA GCACACACAC ACCGCAAACA ACAAATTATA TTTTTATAGA 6625 AAAAAGAAAC ATTCAAAAGC TACTTCTGCC TGAGCATTTC AAATAGTACT TTGATACTGA 6685 TTAAAAACTA CCTAAGACGT ATCTGATGTT TTCATAAAAT TATAATTAAT AGGAAAAAAT 6745 TAAATTTCTG AAGTGTTGAG GAATCGTAAA AATGTTAGCT GGCGGTAATC ACTTTTGGCA 6805 CAAATATATG AGCATAAAAA AAGGCA 6831 1876 amino acids amino acid linear protein not provided 28 Met Ser Asn Gln Ala His Ile Asp Tyr Asp Lys Gln Phe Gln Asp Asp 1 5 10 15 Leu Ala Lys Ala Thr Ala Leu Ser Leu Glu Gln His Ala Leu Asp Asp 20 25 30 Tyr Arg Arg Asn Lys Lys Tyr Gly Ser Gly Tyr Gln Gln Ser Ser Thr 35 40 45 Val Ala Gly Arg Asp Tyr Gln Ala Ala Gln Arg Ser Gln Ser Leu His 50 55 60 Gln Pro Arg Arg His Ser Glu Val His Gln Val Ala Ile Ser Pro Glu 65 70 75 80 Asn Ala Glu Arg Ser Arg Thr Pro Pro Ala Gln Gly Thr Asp Asn Asp 85 90 95 Leu Ile Cys Leu Ala Ser Pro Thr Ser Lys Gln Pro Glu Ser Ser Ser 100 105 110 Pro Phe Gly Lys Leu Ile Glu Asp Leu Gln Arg Met Gln Pro Thr Asn 115 120 125 Pro Gln Ser Ala Leu Val Pro Met Gly Pro Val Ala Ser Ala Ser Ile 130 135 140 Pro Pro Gln Tyr Gly Phe Pro Pro His Gln Gln Arg Pro Thr Ala Ala 145 150 155 160 Gln Pro Thr Pro Tyr Gly Met Val Ala Gly Gly Val Val Gly Gly Pro 165 170 175 Ala Tyr Gly Asp Leu Gln Leu Val Pro Tyr Gln Pro Ala Ala Gln Gln 180 185 190 Gln Arg Pro Leu Asn Ser Glu Glu Leu Gln Arg Leu Tyr Ser Met Pro 195 200 205 Ala Gln Met Ala Val Val Pro Val Pro Gln Pro Asn Ala Tyr Met Tyr 210 215 220 Tyr Pro Gly Ala Val Val Thr Pro Tyr Thr Ala Pro Ile Val Pro Gly 225 230 235 240 Ser Ala Ala Phe Met Pro Pro Gln Tyr Pro Ala Gln Gly Tyr Gly Phe 245 250 255 Gly Gly Ala Tyr Thr His Met Asp Leu Arg Arg Pro Gln Ser Gln Pro 260 265 270 Ala Pro Gln Gln Thr Ala Pro Thr Thr Ser His His His Ser Gln Pro 275 280 285 Ser Asn His Ser Thr Ser Ser Pro Ala Glu Ala Asn Gly Val Ala Phe 290 295 300 Pro Ala Arg Arg Gln Val Pro Ser Thr Val Gly Val Ser Ser Ser Ser 305 310 315 320 His Thr Gly Asn Asn Gly His Ser Ser Val Pro Arg Arg Gly Asn Asp 325 330 335 Leu Ile Asp Leu Asn His Glu Asp Tyr Ser Arg Val Ser Val Leu Glu 340 345 350 Ala Phe Asp Pro Leu Leu Asn Asp Asn Thr Gly Asn Asp Thr Ala Ser 355 360 365 Asp Ser Thr Ser Tyr Tyr Ala Glu Tyr Asp Pro Phe Asp Phe Leu Tyr 370 375 380 Ser Gly Asp Ala Ala Thr Gln Tyr Ser Asp Pro Met Tyr Glu Ala Val 385 390 395 400 Asn Arg Trp Asp Lys Thr Val Ala Thr Val Ser Pro Asn Val Gly Leu 405 410 415 Ile Gly Trp Arg Gln Asp Phe Leu Ser Gln Pro Ser Thr Ser Ser Ser 420 425 430 Gln Tyr Gly Val Ala Pro Pro Glu Glu Ser Leu Lys Leu Ala Glu Asn 435 440 445 Gly Ser Glu Thr Ile Ser Pro Pro Pro Pro Leu Pro Pro Arg Asn Gln 450 455 460 Gln Cys Tyr Glu Ser Asn Gln Ala Ala Met Pro Val Ser Arg Pro Pro 465 470 475 480 Gln Ser Ser Val Leu Thr Asp Ser Tyr Thr Ser Ser Ile Pro Ala Asn 485 490 495 Val Val Leu Asp Arg Arg Lys Thr Cys Thr Arg Leu Tyr Glu Leu Ile 500 505 510 Ser Asp Gln Arg Thr Asp Asp Pro Glu Leu Leu Glu Phe Tyr His Met 515 520 525 Val Lys Glu Val Arg Ala Arg Tyr Pro His Asp Asp Ala Pro Thr Asn 530 535 540 Val Gly His Val Val Ala Ala Glu Phe Asn Tyr His Tyr Met Met Asp 545 550 555 560 Thr Ser Ile Lys Val Ile Val His Pro Ala Leu Asn Thr Leu Gln Ser 565 570 575 Thr Val Leu Ala Ala Ser Met Gly Lys Glu Gln Val Lys Gly Tyr Gly 580 585 590 Met Pro Val Thr Phe Thr Cys Asp Ile Asp Ser Val Val Ala Gln Val 595 600 605 Val Ala Gln Ala Leu Ala Ser Leu Glu Gly Gln Val Lys Gly Thr Val 610 615 620 Thr Asp Tyr Ala Val Lys Pro Ile Gly Leu Leu Glu Trp Leu Ala Pro 625 630 635 640 Thr Ser Arg Leu Ser Gln Leu Glu Cys Val His Asn Ser Phe Gln Leu 645 650 655 Glu Lys Asp Val His Leu Gly Leu Cys Leu Ser Thr Ala Ala Asn Met 660 665 670 Gln Ala Ile Ala Arg Thr Glu Arg Asp Asp Glu His Asp Ala Asp Leu 675 680 685 Leu Pro Glu His Pro Leu Pro Asn Glu Val Val Gln Ile Val Thr Tyr 690 695 700 Asp Asn Met Met Ile Leu Ile Glu Thr Leu Glu Met Glu Ile Asp Lys 705 710 715 720 Leu Glu Ser Ala Ala Asp Gly Val Pro Gly Arg Ser Val Val Ser Cys 725 730 735 Ser Gly Val Val Gln Ala Val Lys Ala Ile Cys Ala Leu Leu Gly Ser 740 745 750 Ile Asp Thr Met Glu Ile Ala Arg Cys Val Ala Asp Leu Lys Arg Ile 755 760 765 Cys Glu Val Glu Gln Lys Lys Tyr Ser Thr Gly Ala Ser Asn Pro Glu 770 775 780 Ile Val Ser Asp Tyr Gly Asp Tyr Ala Gln Val Val Leu Arg Pro Arg 785 790 795 800 Ser Met Leu Glu Gln Ile Lys Val Lys Cys Asn Glu Leu Arg Asp Ala 805 810 815 Val Gln Glu Leu Val Glu Leu Tyr Ala Asn Val Phe Arg Val Ala Phe 820 825 830 Ser Val Lys Thr Pro Asp Tyr Ser Thr Thr Pro Ile Pro Ile Ser Cys 835 840 845 Val Ser Lys Pro Ile Val Val Cys Ile Ser Cys Leu His Arg Pro Leu 850 855 860 Pro Asn Trp Lys Phe Asp Asp Tyr Ser Leu Cys Val Gln Ile Val Tyr 865 870 875 880 Gly Thr Arg Leu Leu Ser Lys Pro Asn Val Leu Thr Cys Ser Asn Asp 885 890 895 Thr Ser Gly Gly Leu Phe Pro Arg Leu Asn Phe Ser Ala Trp Leu Thr 900 905 910 Phe Asp Gln His Pro Ile Cys Thr Leu Pro Arg Glu Ala Arg Leu Thr 915 920 925 Phe Val Leu Tyr Gly Lys Gln Ala Ala Ser Glu Gly Glu Pro Asn Ala 930 935 940 Asp Gln Asn Gly Glu Arg Arg Gln Val Thr Thr Glu Leu Gly Trp Cys 945 950 955 960 Ser Ile Gln Leu Phe Asp Phe Lys Arg Val Met Ile Cys Gly Pro Tyr 965 970 975 Leu Leu Ser Leu Trp Pro Pro Met Thr Asp Lys Met Leu Gly Pro Ala 980 985 990 Pro Ala Arg Gly Cys His Pro Gln Pro Asp Phe Cys Pro Val Leu Ser 995 1000 1005 Ile Glu Val Pro Pro Tyr Gly Gly Arg Ile Glu Phe Pro Glu His Gln 1010 1015 1020 Glu Val Pro Lys Pro Ala Pro His Tyr Asp Phe Ala Ser Leu Asp Ala 1025 1030 1035 1040 Asn Leu Gln Glu Glu Leu Leu Asp Thr Ala Glu Leu Gly Tyr Thr Gly 1045 1050 1055 Ala Thr Glu Arg Arg Glu Val Phe Trp Glu Lys Arg Leu Tyr Leu Gln 1060 1065 1070 Ser Tyr Pro Asn Ala Leu Pro Lys Val Leu His Ala Ala His Ser Trp 1075 1080 1085 Asp Tyr Ala Asn Leu Ile Asp Leu His Ala Leu Leu His Ser Trp Ala 1090 1095 1100 Pro Leu Ser Pro Leu Gln Ser Leu Glu Leu Leu Leu Pro Arg Tyr Pro 1105 1110 1115 1120 Asp Ala Lys Val Arg Glu Lys Ala Val Glu Trp Ile Ser Lys Met Pro 1125 1130 1135 Asn Asp Gln Leu Val Asp Phe Leu Pro Gln Leu Val Gln Ser Leu Lys 1140 1145 1150 His Asp Thr Tyr Glu Gly Ser Ala Met Ala Arg Phe Leu Leu Ser Lys 1155 1160 1165 Cys Leu Glu Ser Pro Arg Phe Ala His His Met Tyr Trp Leu Leu Val 1170 1175 1180 His Ser Leu Pro Asp Asp Pro His Asn Ser Ile Gly Ala Ala Met Val 1185 1190 1195 1200 Asp Gln Glu Tyr Asp Glu Ser Gln Val Thr Gln Val Arg Tyr Tyr Arg 1205 1210 1215 Arg Asn Lys Met Met Leu Arg Ala Leu Met Ala Ile Cys Gly Glu Lys 1220 1225 1230 Met Leu Gln Arg Phe Met Tyr Gln His Arg Met Cys Gln Lys Leu Thr 1235 1240 1245 Thr Ile Ala Glu Ser Val Lys Glu Ala Lys Glu Ser Met Arg Gln Lys 1250 1255 1260 Ser Leu Ala Ala Gly Met Asp Glu Val His Gln Asp Leu Leu Glu Gln 1265 1270 1275 1280 Pro Thr Cys Leu Pro Leu Gly Pro Glu Leu Glu Val Thr Gly Val Ser 1285 1290 1295 Val Arg Asn Cys Ser Tyr Phe Asn Ser Asn Thr Leu Pro Leu Lys Ile 1300 1305 1310 Asn Phe Val Gly Pro Asp Ala Glu Ser Leu Pro Ala Ile Phe Lys Cys 1315 1320 1325 Gly Asp Asp Leu Gln Gln Asp Gln Leu Thr Ile Gln Leu Ile Arg Ile 1330 1335 1340 Met Asn Lys Met Trp Leu Ala Glu Arg Leu Asp Leu Lys Met Val Thr 1345 1350 1355 1360 Phe Asn Cys Val Pro Thr Gly Tyr Lys Ser Gly Met Ile Glu Leu Val 1365 1370 1375 Ser Glu Ala Glu Thr Leu Arg Lys Ile Gln Val Glu Cys Gly Leu Thr 1380 1385 1390 Gly Ser Phe Lys Asp Arg Pro Ile Ala Glu Trp Leu Gly Lys Gln Asn 1395 1400 1405 Pro Ser Pro Leu Glu Tyr Gln Ser Ala Val Arg Asn Phe Thr Leu Ser 1410 1415 1420 Cys Ala Gly Tyr Ser Val Ala Thr Tyr Val Leu Gly Ile Cys Asp Pro 1425 1430 1435 1440 His Asn Asp Asn Ile Met Leu Lys Thr Ser Gly His Leu Phe His Ile 1445 1450 1455 Asp Phe Gly Lys Phe Leu Gly Asp Ala Gln Met Phe Gly Asn Phe Lys 1460 1465 1470 Arg Asp Arg Thr Pro Phe Val Leu Thr Ser Asp Met Ala Tyr Val Ile 1475 1480 1485 Asn Gly Gly Asp Lys Pro Ser Thr Asp Phe His Tyr Phe Val Asp Leu 1490 1495 1500 Cys Cys Arg Ala Phe Asn Ile Val Arg Lys Asn Ala Asp Leu Leu Leu 1505 1510 1515 1520 His Thr Leu Ala His Met Ala Thr Ala Gly Met Pro Gly Val Asn Ser 1525 1530 1535 Asn Ala Val Gln Tyr Val Arg Arg Ala Leu Leu Pro Ser Gln Ser Asn 1540 1545 1550 Pro Glu Ala Ala Ala Thr Phe Ala Lys Met Ile Gln Ser Ser Leu Lys 1555 1560 1565 Ser Trp Phe Thr Gln Phe Asn Phe Phe Leu His Asn Leu Ala Gln Thr 1570 1575 1580 Arg Phe Thr Pro Asp Glu Gly Ser Gly Glu Leu Leu Ser Phe Val Pro 1585 1590 1595 1600 Arg Lys Tyr Thr Met Gln Gln Asp Gly Arg Leu Lys Ile Val Lys Val 1605 1610 1615 Val Cys Phe Gln Lys His Tyr Ser Met Glu Lys Phe Tyr Met Tyr Ile 1620 1625 1630 Leu Glu Val Thr Arg His Gly Gln Pro Asp Pro Thr His Leu Phe Arg 1635 1640 1645 Ser Tyr Arg Glu Phe Thr Glu Phe His Gln Lys Leu Cys Met His Phe 1650 1655 1660 Pro Leu Val Lys Leu His Ser Leu Pro Ala Gly Val His Val Gly Arg 1665 1670 1675 1680 Ser Asn Ile Lys Ser Val Ala Glu Lys Arg Leu Pro Leu Ile Gln Arg 1685 1690 1695 Phe Leu Lys Ser Leu Phe Asp Ala Ser Glu Glu Ile Ala His Ser Glu 1700 1705 1710 Leu Val Tyr Thr Phe Phe His Pro Leu Leu Arg Asp Gln Gln Glu Ala 1715 1720 1725 Lys Leu Gly Met Pro Lys Ile Lys Glu Val Lys Gln Gln Pro Ser Arg 1730 1735 1740 Asp Asn Pro His Glu Ile Gly Gln Ile Arg Leu Ser Leu Gln Tyr Gln 1745 1750 1755 1760 Arg Gly Val Leu Thr Val Met Ile His His Ala Lys Glu Leu Pro Met 1765 1770 1775 Leu Gln Gly Gly Gln Glu Pro Asn Thr Tyr Val Lys Cys Tyr Leu Lys 1780 1785 1790 Pro Asp Pro Lys Lys Glu Thr Lys Arg Lys Thr Lys Val Val Arg Lys 1795 1800 1805 Thr Cys Val Pro Ser Phe Met Glu Thr Leu Glu Tyr Arg Met Pro Leu 1810 1815 1820 Asn Ile Ile Gln Glu Arg Arg Leu Gln Val Thr Val Trp Ser His Asp 1825 1830 1835 1840 Thr Leu Gln Glu Asn Glu Leu Leu Gly Gly Phe Asp Met Asp Leu Ser 1845 1850 1855 Lys Tyr Asp Leu Arg Gln Glu Leu Val Asp Trp Tyr Arg Leu Gly Ala 1860 1865 1870 Val Ser Arg Asn 1875 5285 base pairs nucleic acid single linear DNA (genomic) not provided CDS 3..5180 CDS 5183..5195 CDS 5198..5285 29 TG CAG AGC TCG GCT GGC CGC GGA GTG AGT CGA AGC TCT CCT CAG CGG 47 Gln Ser Ser Ala Gly Arg Gly Val Ser Arg Ser Ser Pro Gln Arg 1 5 10 15 CCG GCT GAG CCA GCT GAG GCG GGA GAA AAA CAT GGC TCG GAC CTT GGA 95 Pro Ala Glu Pro Ala Glu Ala Gly Glu Lys His Gly Ser Asp Leu Gly 20 25 30 GGG CGC GAA GGC TCG GGT TGC GGT GAA GAC CAA GAC TCC CGC AGC GTG 143 Gly Arg Glu Gly Ser Gly Cys Gly Glu Asp Gln Asp Ser Arg Ser Val 35 40 45 AGG TCC TGG TAT TTT GGA AGC TAC AAG AAA AAA AGA TTA AGA GGT TTG 191 Arg Ser Trp Tyr Phe Gly Ser Tyr Lys Lys Lys Arg Leu Arg Gly Leu 50 55 60 TTC TCT TTT GTG GAC ATG GCT CAG ATT TCC AAC AAC AGT GAA TTT AAA 239 Phe Ser Phe Val Asp Met Ala Gln Ile Ser Asn Asn Ser Glu Phe Lys 65 70 75 CAA TGT TCA TCT TCA CAT CCA GAA CCA ATA AGA ACC AAA GAT GTG AAC 287 Gln Cys Ser Ser Ser His Pro Glu Pro Ile Arg Thr Lys Asp Val Asn 80 85 90 95 AAA GCA GAA GCG TTA CAG ATG GAA GCA GAA GCC TTA GCA AAA CTG CAG 335 Lys Ala Glu Ala Leu Gln Met Glu Ala Glu Ala Leu Ala Lys Leu Gln 100 105 110 AAG GAT AGA CAA ATG ACT GAC AGC CCA AGA GGC TTT GAG CTG TCT AGC 383 Lys Asp Arg Gln Met Thr Asp Ser Pro Arg Gly Phe Glu Leu Ser Ser 115 120 125 AGC ACT AGA CAA AGA ACA CAA GGT TTT AAC AAA CAG GAT TAT GAT CTC 431 Ser Thr Arg Gln Arg Thr Gln Gly Phe Asn Lys Gln Asp Tyr Asp Leu 130 135 140 ATG GTG TTT CCT GAG TTG GAT TCC CAA AAA AGA GCA GTA GAT ATT GAT 479 Met Val Phe Pro Glu Leu Asp Ser Gln Lys Arg Ala Val Asp Ile Asp 145 150 155 GTA GAA AAG CTC ACC CAG GCT GAA CTT GAG AAG ATA TTG CTG GAC GAC 527 Val Glu Lys Leu Thr Gln Ala Glu Leu Glu Lys Ile Leu Leu Asp Asp 160 165 170 175 AAT TTT GAA ACT AGA AAA CCT CCT GCA TTG CCA GTT ACT CCT GTT CTG 575 Asn Phe Glu Thr Arg Lys Pro Pro Ala Leu Pro Val Thr Pro Val Leu 180 185 190 AGC CCT TCG TTC TCA ACA CAG CTG TAT CTT AGA CCT AGT GGT CAA AGA 623 Ser Pro Ser Phe Ser Thr Gln Leu Tyr Leu Arg Pro Ser Gly Gln Arg 195 200 205 GGC CAG TGG CCC CCT GGA TTA TGC GGG CCT TCC ACG TAC ACT TTA CCT 671 Gly Gln Trp Pro Pro Gly Leu Cys Gly Pro Ser Thr Tyr Thr Leu Pro 210 215 220 TCT ACT TAT CCT TCA GCA TAC AGT AAA CAG GCC ACA TTC CAG AAT GGC 719 Ser Thr Tyr Pro Ser Ala Tyr Ser Lys Gln Ala Thr Phe Gln Asn Gly 225 230 235 TTC AGT CCA AGG ATG CCC ACT TTT CCA TCA ACA GAG TCT GTA TAT TTA 767 Phe Ser Pro Arg Met Pro Thr Phe Pro Ser Thr Glu Ser Val Tyr Leu 240 245 250 255 AGA CTT CCT GGA CAG TCT CCA TAT TTT TCA TAT CCT TTG ACA CCT GCC 815 Arg Leu Pro Gly Gln Ser Pro Tyr Phe Ser Tyr Pro Leu Thr Pro Ala 260 265 270 ACA CCA TTT CAT CCA CAA GGA AGT TTA CCA GTC TAT CGG CCA CTA GTC 863 Thr Pro Phe His Pro Gln Gly Ser Leu Pro Val Tyr Arg Pro Leu Val 275 280 285 AGT CCT GAC ATG GCA AAA CTA TTT GAA AAA ATA GCA AGT ACC TCA GAA 911 Ser Pro Asp Met Ala Lys Leu Phe Glu Lys Ile Ala Ser Thr Ser Glu 290 295 300 TTT TTA AAA AAT GGG AAA GCA AGG ACT GAT TTG GAG ATA GCA AAC TCG 959 Phe Leu Lys Asn Gly Lys Ala Arg Thr Asp Leu Glu Ile Ala Asn Ser 305 310 315 AAA GCT TCA GTC TGC AAT CTA CAG ATA TCT CCA AAG TCT GAA GAC ATC 1007 Lys Ala Ser Val Cys Asn Leu Gln Ile Ser Pro Lys Ser Glu Asp Ile 320 325 330 335 AAT AAG TTT GAT TGG TTA GAC TTG GAT CCT TGG GAT GCT GTT CTT CTT 1055 Asn Lys Phe Asp Trp Leu Asp Leu Asp Pro Trp Asp Ala Val Leu Leu 340 345 350 GAA GAG AGA TCG CCA AGT TGT CAC CTA GAA AGA AAG GTG AAT GGA AAA 1103 Glu Glu Arg Ser Pro Ser Cys His Leu Glu Arg Lys Val Asn Gly Lys 355 360 365 TCC CTT TCT GGG GCA ACT GTA ACA AGA AGC CAG TCT TTA ATC ATT CGG 1151 Ser Leu Ser Gly Ala Thr Val Thr Arg Ser Gln Ser Leu Ile Ile Arg 370 375 380 ACA GCT CAA TTT ACA AAA GCC CAG GGC CAA GTA TCT CAG AAA GAC CCA 1199 Thr Ala Gln Phe Thr Lys Ala Gln Gly Gln Val Ser Gln Lys Asp Pro 385 390 395 AAT GGG ACC AGT AGT TTG CCA ACT GGA AGT TCT CTT CTA CAA GAA TTT 1247 Asn Gly Thr Ser Ser Leu Pro Thr Gly Ser Ser Leu Leu Gln Glu Phe 400 405 410 415 GAA GTA CAG AAT GAC GAG GTG GCA GCT TTT TGT CAA TCC ATT ATG AAA 1295 Glu Val Gln Asn Asp Glu Val Ala Ala Phe Cys Gln Ser Ile Met Lys 420 425 430 TTG AAG ACC AAA TTT CCA TAT ACT GAT CAC TGC ACA AAT CCA GGC TAT 1343 Leu Lys Thr Lys Phe Pro Tyr Thr Asp His Cys Thr Asn Pro Gly Tyr 435 440 445 TTG TTA AGT CCA GTG ACA GTG CAA AGA AAC ATG TGT GGG GAG AAT GCC 1391 Leu Leu Ser Pro Val Thr Val Gln Arg Asn Met Cys Gly Glu Asn Ala 450 455 460 AGT GTG AAG GTC TCC ATT GAA ATT GAA GGG CTT CAA CTA CCA GTT ACT 1439 Ser Val Lys Val Ser Ile Glu Ile Glu Gly Leu Gln Leu Pro Val Thr 465 470 475 TTT ACA TGT GAT GTG AGT TCT ACT GTA GAA ATA ATT ATA ATG CAA GCC 1487 Phe Thr Cys Asp Val Ser Ser Thr Val Glu Ile Ile Ile Met Gln Ala 480 485 490 495 CTT TCG TGG GTA CAT GAT GAC TTG AAT CAA GTG GAT GTT GGC AGC TAC 1535 Leu Ser Trp Val His Asp Asp Leu Asn Gln Val Asp Val Gly Ser Tyr 500 505 510 ATT CTG AAA GTT TGT GGT CAA GAG GAG GTT CTA CAG AAT AAT CAT TGC 1583 Ile Leu Lys Val Cys Gly Gln Glu Glu Val Leu Gln Asn Asn His Cys 515 520 525 CTT GGA AGT CAC GAA CAT ATT CAA AAT TGT CGA AAA TGG GAC ACA GAG 1631 Leu Gly Ser His Glu His Ile Gln Asn Cys Arg Lys Trp Asp Thr Glu 530 535 540 ATT AAA TTA CAG CTC TTG ACC TTG AGT GCA ATG TGC CAG AAT CTG GCT 1679 Ile Lys Leu Gln Leu Leu Thr Leu Ser Ala Met Cys Gln Asn Leu Ala 545 550 555 CGA ACA GCA GAA GAT GAT GAA GCA CCT GTG GAT TTA AAC AAA TAC TTG 1727 Arg Thr Ala Glu Asp Asp Glu Ala Pro Val Asp Leu Asn Lys Tyr Leu 560 565 570 575 TAT CAA ATA GAA AAA CCT TAT AAA GAA GTC ATG ACA AGA CAC CCT GTT 1775 Tyr Gln Ile Glu Lys Pro Tyr Lys Glu Val Met Thr Arg His Pro Val 580 585 590 GAA GAG CTC TTA GAT TCC TAT CAC TAC CAA GTA GAA CTG GCT CTT CAA 1823 Glu Glu Leu Leu Asp Ser Tyr His Tyr Gln Val Glu Leu Ala Leu Gln 595 600 605 ACT GAA AAC CAG CAC CGA GCT GTT GAT CAA GTG ATT AAA GCA GTA AGA 1871 Thr Glu Asn Gln His Arg Ala Val Asp Gln Val Ile Lys Ala Val Arg 610 615 620 AAA ATT TGT AGT GCT TTA GAT GGG GTG GAG ACC CCC TCC GTT ACA GAA 1919 Lys Ile Cys Ser Ala Leu Asp Gly Val Glu Thr Pro Ser Val Thr Glu 625 630 635 GCA GTG AAG AAG TTA AAG CGA GCA GTT AAC CTT CCA AGG AAT AAA AGT 1967 Ala Val Lys Lys Leu Lys Arg Ala Val Asn Leu Pro Arg Asn Lys Ser 640 645 650 655 GCT GAT GTG ACT TCA TTA TCT GGA AGT GAC ACA AGG AAG AAC TCA ACT 2015 Ala Asp Val Thr Ser Leu Ser Gly Ser Asp Thr Arg Lys Asn Ser Thr 660 665 670 AAG GGG TCA CTG AAT CCT GAA AAT CCT GTT CAA GTA AGC ATG GAT CAC 2063 Lys Gly Ser Leu Asn Pro Glu Asn Pro Val Gln Val Ser Met Asp His 675 680 685 CTA ACA ACA CGC ATT TAT GAT CTT CTC AGG CTC CAT GCA AAT TCT AGT 2111 Leu Thr Thr Arg Ile Tyr Asp Leu Leu Arg Leu His Ala Asn Ser Ser 690 695 700 AGG TGT TCT ACA GGC TGT CCC CGA GGG AGC AGG AAC ATC AAG GAA GCA 2159 Arg Cys Ser Thr Gly Cys Pro Arg Gly Ser Arg Asn Ile Lys Glu Ala 705 710 715 TGG ACT GCA ACG GAG CAG CTC CAG TTC ACT GTC TAT GCC GCA CAC GGA 2207 Trp Thr Ala Thr Glu Gln Leu Gln Phe Thr Val Tyr Ala Ala His Gly 720 725 730 735 ATT TCC AGT AAC TGG GTA TCA AAT TAT GAA AAA TAC TAC TTG ATA TGT 2255 Ile Ser Ser Asn Trp Val Ser Asn Tyr Glu Lys Tyr Tyr Leu Ile Cys 740 745 750 TCC CTG TCT CAC AAT GGG AAG GAT CTT TTT AAG CCT ATT CAG TCA AAG 2303 Ser Leu Ser His Asn Gly Lys Asp Leu Phe Lys Pro Ile Gln Ser Lys 755 760 765 AAG GTT GGC ACG TAC AAG AAT TTC TTC TAT CTT ATT AAA TGG GAT GAA 2351 Lys Val Gly Thr Tyr Lys Asn Phe Phe Tyr Leu Ile Lys Trp Asp Glu 770 775 780 CTA ATC ATT TTT CCT ATC CAG ATA TCG CAG TTG CCA TTA GAA TCA GTT 2399 Leu Ile Ile Phe Pro Ile Gln Ile Ser Gln Leu Pro Leu Glu Ser Val 785 790 795 CTT CAT CTT ACT CTG TTT GGA GTT TTA AAT CAG AGC AGT GGA AGT TCC 2447 Leu His Leu Thr Leu Phe Gly Val Leu Asn Gln Ser Ser Gly Ser Ser 800 805 810 815 CCT GAT TCT AAT AAA CAG AGA AAG GGG CCA GAA GCT CTG GGC AAA GTT 2495 Pro Asp Ser Asn Lys Gln Arg Lys Gly Pro Glu Ala Leu Gly Lys Val 820 825 830 TCT TTA ACT CTA TTT GAT TTT AAA CGG TTT TTA ACA TGT GGA ACT AAA 2543 Ser Leu Thr Leu Phe Asp Phe Lys Arg Phe Leu Thr Cys Gly Thr Lys 835 840 845 CTT CTC TAC CTT TGG ACT TCA TCA CAT ACA AAT TCT ATT CCT GGA GCA 2591 Leu Leu Tyr Leu Trp Thr Ser Ser His Thr Asn Ser Ile Pro Gly Ala 850 855 860 ATC CCC AAA AAA AGC TAT GTC ATG GAA AGA ATT GTG CTA CAG GTT GAT 2639 Ile Pro Lys Lys Ser Tyr Val Met Glu Arg Ile Val Leu Gln Val Asp 865 870 875 TTT CCT TCT CCT GCG TTT GAC ATT ATT TAT ACA TCT CCT CAA ATT GAT 2687 Phe Pro Ser Pro Ala Phe Asp Ile Ile Tyr Thr Ser Pro Gln Ile Asp 880 885 890 895 AGA AAC ATT ATA CAG CAA GAC AAG TTG GAA ACA CTG GAG AGT GAT ATA 2735 Arg Asn Ile Ile Gln Gln Asp Lys Leu Glu Thr Leu Glu Ser Asp Ile 900 905 910 AAG GGG AAA CTT CTG GAT ATT ATT CAC AGA GAT TCA TCA TTT GGA CTT 2783 Lys Gly Lys Leu Leu Asp Ile Ile His Arg Asp Ser Ser Phe Gly Leu 915 920 925 TCT AAA GAA GAT AAG GTC TTT TTG TGG GAA AAC CGC TAT TAT TGC CTA 2831 Ser Lys Glu Asp Lys Val Phe Leu Trp Glu Asn Arg Tyr Tyr Cys Leu 930 935 940 AAA CAT CCA AAT TGT CTT CCG AAG ATA TTA GCA AGT GCT CCA AAC TGG 2879 Lys His Pro Asn Cys Leu Pro Lys Ile Leu Ala Ser Ala Pro Asn Trp 945 950 955 AAG TGG GCT AAT CTT GCC AAA ACT TAC TCA TTG CTG CAT CAG TGG CCG 2927 Lys Trp Ala Asn Leu Ala Lys Thr Tyr Ser Leu Leu His Gln Trp Pro 960 965 970 975 CCA TTG TGC CCA CTA GCT GCA TTG GAG CTC CTT GAT GCA AAA TTT GCT 2975 Pro Leu Cys Pro Leu Ala Ala Leu Glu Leu Leu Asp Ala Lys Phe Ala 980 985 990 GAT CAG GGG GTG CGA TCG CTT GCT GTG AGC TGG ATG GAG GCC ATT AGT 3023 Asp Gln Gly Val Arg Ser Leu Ala Val Ser Trp Met Glu Ala Ile Ser 995 1000 1005 GAT GAT GAG CTA GCA GAT CTG CTC CCA CAG TTC GTA CAG GCT TTG AAA 3071 Asp Asp Glu Leu Ala Asp Leu Leu Pro Gln Phe Val Gln Ala Leu Lys 1010 1015 1020 TAT GAA ATT TAT TTG AAT AGT TCA CTA GTG CGC TTC CTT CTG TCC AGG 3119 Tyr Glu Ile Tyr Leu Asn Ser Ser Leu Val Arg Phe Leu Leu Ser Arg 1025 1030 1035 GCA TTG GGA AAC ATC CAG ATA GCA CAC AGT TTG TAT TGG CTT CTC AAG 3167 Ala Leu Gly Asn Ile Gln Ile Ala His Ser Leu Tyr Trp Leu Leu Lys 1040 1045 1050 1055 GAT GCT TTG CAT GAT ACA CAC TTT GGA AGC AGA TAT GAA CAT GTG TTG 3215 Asp Ala Leu His Asp Thr His Phe Gly Ser Arg Tyr Glu His Val Leu 1060 1065 1070 GGT GCT CTC CTC TCT GTA GGA GGA AAA GGA CTC AGA GAA GAG CTT TCT 3263 Gly Ala Leu Leu Ser Val Gly Gly Lys Gly Leu Arg Glu Glu Leu Ser 1075 1080 1085 AAG CAG ATG AAA CTT GTA CAG CTT TTA GGA GGA GTG GCA GAA AAA GTA 3311 Lys Gln Met Lys Leu Val Gln Leu Leu Gly Gly Val Ala Glu Lys Val 1090 1095 1100 AGG CAG GCT AGT GGA TCA ACA AGA CAG GTT GTC CTC CAA AAG AGT ATG 3359 Arg Gln Ala Ser Gly Ser Thr Arg Gln Val Val Leu Gln Lys Ser Met 1105 1110 1115 GAA CGG GTA CAG TCC TTT TTT CTG AGA AAT AAA TGC CGT CTT CCT CTC 3407 Glu Arg Val Gln Ser Phe Phe Leu Arg Asn Lys Cys Arg Leu Pro Leu 1120 1125 1130 1135 AAA CCA AGT CTA GTG GCA AAA GAA CTG AAT ATT AAG TCA TGT TCG TTC 3455 Lys Pro Ser Leu Val Ala Lys Glu Leu Asn Ile Lys Ser Cys Ser Phe 1140 1145 1150 TTC AGT TCT AAT GCT ATG CCT CTG AAA GTC ACA ATG GTG AAT GCT GAC 3503 Phe Ser Ser Asn Ala Met Pro Leu Lys Val Thr Met Val Asn Ala Asp 1155 1160 1165 CCT CTG GGG GAA GAA ATT AAT GTC ATG TTT AAG GTT GGT GAA GAT CTT 3551 Pro Leu Gly Glu Glu Ile Asn Val Met Phe Lys Val Gly Glu Asp Leu 1170 1175 1180 CGG CAA GAT ATG TTA GCT TTA CAG ATG ATA AAG ATT ATG GAT AAG ATC 3599 Arg Gln Asp Met Leu Ala Leu Gln Met Ile Lys Ile Met Asp Lys Ile 1185 1190 1195 TGG CTT AAA GAG GGA CTG GAT CTG AGG ATG GTG ATA TTC AGA TGC CTG 3647 Trp Leu Lys Glu Gly Leu Asp Leu Arg Met Val Ile Phe Arg Cys Leu 1200 1205 1210 1215 TCA ACT GGC CGA GAT CGA GGC ATG GTG GAG CTA GTT CCT GCT TCA GAT 3695 Ser Thr Gly Arg Asp Arg Gly Met Val Glu Leu Val Pro Ala Ser Asp 1220 1225 1230 ACC CTC AGG AAA ATC CAA GTG GAA TAT GGT GTA ACA GGA TCC TTT AAA 3743 Thr Leu Arg Lys Ile Gln Val Glu Tyr Gly Val Thr Gly Ser Phe Lys 1235 1240 1245 GAT AAA CCA CTT GCT GAG TGG CTG AGG AAA TAC AAT CCT TCT GAA GAA 3791 Asp Lys Pro Leu Ala Glu Trp Leu Arg Lys Tyr Asn Pro Ser Glu Glu 1250 1255 1260 GAA TAT GAA AAG GCT TCT GAG AAC TTT ATC TAC TCT TGT GCT GGG TGC 3839 Glu Tyr Glu Lys Ala Ser Glu Asn Phe Ile Tyr Ser Cys Ala Gly Cys 1265 1270 1275 TGT GTA GCC ACC TAT GTT TTA GGC ATT TGT GAT CGG CAC AAT GAC AAT 3887 Cys Val Ala Thr Tyr Val Leu Gly Ile Cys Asp Arg His Asn Asp Asn 1280 1285 1290 1295 ATA ATG CTT CGA AGC ACA GGA CAC ATG TTC CAC ATT GAC TTT GGA AAG 3935 Ile Met Leu Arg Ser Thr Gly His Met Phe His Ile Asp Phe Gly Lys 1300 1305 1310 TTT TTG GGC CAT GCA CAG ATG TTT GGT AGC TTC AAA AGG GAC CGA GCT 3983 Phe Leu Gly His Ala Gln Met Phe Gly Ser Phe Lys Arg Asp Arg Ala 1315 1320 1325 CCT TTT GTG CTT ACC TCT GAC ATG GCG TAT GTC ATT AAT GGA GGT GAA 4031 Pro Phe Val Leu Thr Ser Asp Met Ala Tyr Val Ile Asn Gly Gly Glu 1330 1335 1340 AAG CCC ACC ATT CGT TTC CAG TTG TTT GTG GAC CTC TGC TGT CAA GCC 4079 Lys Pro Thr Ile Arg Phe Gln Leu Phe Val Asp Leu Cys Cys Gln Ala 1345 1350 1355 TAC AAC TTG ATA AGA AAG CAA ACA AAC CTC TTT CTT AAC CTT CTC TCA 4127 Tyr Asn Leu Ile Arg Lys Gln Thr Asn Leu Phe Leu Asn Leu Leu Ser 1360 1365 1370 1375 CTG ATG ATT CCT TCA GGA TTG CCA GAA CTC ACA AGT ATT CAG GAT CTG 4175 Leu Met Ile Pro Ser Gly Leu Pro Glu Leu Thr Ser Ile Gln Asp Leu 1380 1385 1390 AAA TAT GTT AGA GAT GCA CTT CAG CCC CAA ACT ACA GAT GCT GAA GCT 4223 Lys Tyr Val Arg Asp Ala Leu Gln Pro Gln Thr Thr Asp Ala Glu Ala 1395 1400 1405 ACT ATT TTC TTT ACT AGG CTG ATT GAG TCA AGT TTG GGA AGC ATT GCC 4271 Thr Ile Phe Phe Thr Arg Leu Ile Glu Ser Ser Leu Gly Ser Ile Ala 1410 1415 1420 ACA AAG TTT AAT TTC TTC ATT CAT AAC CTT GCT CAG CTA CGT TTT TCT 4319 Thr Lys Phe Asn Phe Phe Ile His Asn Leu Ala Gln Leu Arg Phe Ser 1425 1430 1435 GGC CTT CCT TCT AAT GAT GAG CCC ATC CTT TCA TTC TCA CCG AAA ACA 4367 Gly Leu Pro Ser Asn Asp Glu Pro Ile Leu Ser Phe Ser Pro Lys Thr 1440 1445 1450 1455 TAC TCC TTT AGA CAA GAT GGC CGG ATC AAG GAA GTC TCT GTT TTC ACA 4415 Tyr Ser Phe Arg Gln Asp Gly Arg Ile Lys Glu Val Ser Val Phe Thr 1460 1465 1470 TAT CAT AAG AAA TAC AAC CCA GAT AAA CAC TAT ATT TAT GTG GTT CGA 4463 Tyr His Lys Lys Tyr Asn Pro Asp Lys His Tyr Ile Tyr Val Val Arg 1475 1480 1485 ATT CTA AGA GAA GGA CAC CTT GAA CCA TCA TTT GTA TTC CGG ACA TTT 4511 Ile Leu Arg Glu Gly His Leu Glu Pro Ser Phe Val Phe Arg Thr Phe 1490 1495 1500 GAT GAA TTT CAG GAA CTT CAC AAT AAG CTC AGT ATT ATT TTT CCT CTT 4559 Asp Glu Phe Gln Glu Leu His Asn Lys Leu Ser Ile Ile Phe Pro Leu 1505 1510 1515 TGG AAA TTA CCT GGC TTT CCT AAT AGG ATG GTT CTT GGA AGA ACA CAC 4607 Trp Lys Leu Pro Gly Phe Pro Asn Arg Met Val Leu Gly Arg Thr His 1520 1525 1530 1535 ATA AAA GAT GTT GCA GCC AAG AGG AAA ATT GAA TTA AAC AGT TAT TTA 4655 Ile Lys Asp Val Ala Ala Lys Arg Lys Ile Glu Leu Asn Ser Tyr Leu 1540 1545 1550 CAG AGT TTG ATG AAT GCA TCA ACA GAT GTA GCA GAG TGT GAT CTT GTT 4703 Gln Ser Leu Met Asn Ala Ser Thr Asp Val Ala Glu Cys Asp Leu Val 1555 1560 1565 TGT ACT TTT TTC CAC CCT TTA CTT CGT GAT GAG AAA GCT GAA GGA ATA 4751 Cys Thr Phe Phe His Pro Leu Leu Arg Asp Glu Lys Ala Glu Gly Ile 1570 1575 1580 GCT AGG TCT GCA GGT GCA GTT CCC TTC AGC CCA ACT CTG GGC CAA ATA 4799 Ala Arg Ser Ala Gly Ala Val Pro Phe Ser Pro Thr Leu Gly Gln Ile 1585 1590 1595 GGA GGA GCA GTG AAG TTA TCT GTT TCT TAC CGA AAT GGC ACC CTC TTC 4847 Gly Gly Ala Val Lys Leu Ser Val Ser Tyr Arg Asn Gly Thr Leu Phe 1600 1605 1610 1615 ATC ATG GTG ATG CAC ATC AAA GAT CTT GTG ACT GAA GAT GGG GCT GAC 4895 Ile Met Val Met His Ile Lys Asp Leu Val Thr Glu Asp Gly Ala Asp 1620 1625 1630 CCA AAT CCC TAT GTC AAA ACA TAC CTG CTT CCA GAT ACC CAC AAA ACG 4943 Pro Asn Pro Tyr Val Lys Thr Tyr Leu Leu Pro Asp Thr His Lys Thr 1635 1640 1645 TCA AAA CGT AAA ACC AAA ATT TCA CGT AAA ACT AGG AAC CCA ACA TTC 4991 Ser Lys Arg Lys Thr Lys Ile Ser Arg Lys Thr Arg Asn Pro Thr Phe 1650 1655 1660 AAT GAA ATG CTT GTA TAT AGT GGA TAC AGC AAA GAA ACT CTG AGG CAG 5039 Asn Glu Met Leu Val Tyr Ser Gly Tyr Ser Lys Glu Thr Leu Arg Gln 1665 1670 1675 AGA GAA CTT CAA CTG AGT GTA CTC AGT GCA GAA TCA CTG CGG GAG AAT 5087 Arg Glu Leu Gln Leu Ser Val Leu Ser Ala Glu Ser Leu Arg Glu Asn 1680 1685 1690 1695 TTC TTC TTG GGT GGA ATA ACC CTG CCA CTG AAA GAT TTC AAC TTG AGC 5135 Phe Phe Leu Gly Gly Ile Thr Leu Pro Leu Lys Asp Phe Asn Leu Ser 1700 1705 1710 AAA GAG ACA GTT AAG TGG TAT CAG CTG ACT GCG GCA ACG TAT CTA TAA 5183 Lys Glu Thr Val Lys Trp Tyr Gln Leu Thr Ala Ala Thr Tyr Leu 1715 1720 1725 ACT TCC GAC TTC TGA GCT TTG GAA ACA AGG AGT TAT AAA TGT GTG CGC 5231 Thr Ser Asp Phe Ala Leu Glu Thr Arg Ser Tyr Lys Cys Val Arg 1730 1735 1740 ATG CGC ACA TAC ACA CAC TTG GGA ACT TTG TAT AAT TTC ATA CTT TGG 5279 Met Arg Thr Tyr Thr His Leu Gly Thr Leu Tyr Asn Phe Ile Leu Trp 1745 1750 1755 CAG CCC 5285 Gln Pro 1760 1726 amino acids amino acid linear protein not provided 30 Gln Ser Ser Ala Gly Arg Gly Val Ser Arg Ser Ser Pro Gln Arg Pro 1 5 10 15 Ala Glu Pro Ala Glu Ala Gly Glu Lys His Gly Ser Asp Leu Gly Gly 20 25 30 Arg Glu Gly Ser Gly Cys Gly Glu Asp Gln Asp Ser Arg Ser Val Arg 35 40 45 Ser Trp Tyr Phe Gly Ser Tyr Lys Lys Lys Arg Leu Arg Gly Leu Phe 50 55 60 Ser Phe Val Asp Met Ala Gln Ile Ser Asn Asn Ser Glu Phe Lys Gln 65 70 75 80 Cys Ser Ser Ser His Pro Glu Pro Ile Arg Thr Lys Asp Val Asn Lys 85 90 95 Ala Glu Ala Leu Gln Met Glu Ala Glu Ala Leu Ala Lys Leu Gln Lys 100 105 110 Asp Arg Gln Met Thr Asp Ser Pro Arg Gly Phe Glu Leu Ser Ser Ser 115 120 125 Thr Arg Gln Arg Thr Gln Gly Phe Asn Lys Gln Asp Tyr Asp Leu Met 130 135 140 Val Phe Pro Glu Leu Asp Ser Gln Lys Arg Ala Val Asp Ile Asp Val 145 150 155 160 Glu Lys Leu Thr Gln Ala Glu Leu Glu Lys Ile Leu Leu Asp Asp Asn 165 170 175 Phe Glu Thr Arg Lys Pro Pro Ala Leu Pro Val Thr Pro Val Leu Ser 180 185 190 Pro Ser Phe Ser Thr Gln Leu Tyr Leu Arg Pro Ser Gly Gln Arg Gly 195 200 205 Gln Trp Pro Pro Gly Leu Cys Gly Pro Ser Thr Tyr Thr Leu Pro Ser 210 215 220 Thr Tyr Pro Ser Ala Tyr Ser Lys Gln Ala Thr Phe Gln Asn Gly Phe 225 230 235 240 Ser Pro Arg Met Pro Thr Phe Pro Ser Thr Glu Ser Val Tyr Leu Arg 245 250 255 Leu Pro Gly Gln Ser Pro Tyr Phe Ser Tyr Pro Leu Thr Pro Ala Thr 260 265 270 Pro Phe His Pro Gln Gly Ser Leu Pro Val Tyr Arg Pro Leu Val Ser 275 280 285 Pro Asp Met Ala Lys Leu Phe Glu Lys Ile Ala Ser Thr Ser Glu Phe 290 295 300 Leu Lys Asn Gly Lys Ala Arg Thr Asp Leu Glu Ile Ala Asn Ser Lys 305 310 315 320 Ala Ser Val Cys Asn Leu Gln Ile Ser Pro Lys Ser Glu Asp Ile Asn 325 330 335 Lys Phe Asp Trp Leu Asp Leu Asp Pro Trp Asp Ala Val Leu Leu Glu 340 345 350 Glu Arg Ser Pro Ser Cys His Leu Glu Arg Lys Val Asn Gly Lys Ser 355 360 365 Leu Ser Gly Ala Thr Val Thr Arg Ser Gln Ser Leu Ile Ile Arg Thr 370 375 380 Ala Gln Phe Thr Lys Ala Gln Gly Gln Val Ser Gln Lys Asp Pro Asn 385 390 395 400 Gly Thr Ser Ser Leu Pro Thr Gly Ser Ser Leu Leu Gln Glu Phe Glu 405 410 415 Val Gln Asn Asp Glu Val Ala Ala Phe Cys Gln Ser Ile Met Lys Leu 420 425 430 Lys Thr Lys Phe Pro Tyr Thr Asp His Cys Thr Asn Pro Gly Tyr Leu 435 440 445 Leu Ser Pro Val Thr Val Gln Arg Asn Met Cys Gly Glu Asn Ala Ser 450 455 460 Val Lys Val Ser Ile Glu Ile Glu Gly Leu Gln Leu Pro Val Thr Phe 465 470 475 480 Thr Cys Asp Val Ser Ser Thr Val Glu Ile Ile Ile Met Gln Ala Leu 485 490 495 Ser Trp Val His Asp Asp Leu Asn Gln Val Asp Val Gly Ser Tyr Ile 500 505 510 Leu Lys Val Cys Gly Gln Glu Glu Val Leu Gln Asn Asn His Cys Leu 515 520 525 Gly Ser His Glu His Ile Gln Asn Cys Arg Lys Trp Asp Thr Glu Ile 530 535 540 Lys Leu Gln Leu Leu Thr Leu Ser Ala Met Cys Gln Asn Leu Ala Arg 545 550 555 560 Thr Ala Glu Asp Asp Glu Ala Pro Val Asp Leu Asn Lys Tyr Leu Tyr 565 570 575 Gln Ile Glu Lys Pro Tyr Lys Glu Val Met Thr Arg His Pro Val Glu 580 585 590 Glu Leu Leu Asp Ser Tyr His Tyr Gln Val Glu Leu Ala Leu Gln Thr 595 600 605 Glu Asn Gln His Arg Ala Val Asp Gln Val Ile Lys Ala Val Arg Lys 610 615 620 Ile Cys Ser Ala Leu Asp Gly Val Glu Thr Pro Ser Val Thr Glu Ala 625 630 635 640 Val Lys Lys Leu Lys Arg Ala Val Asn Leu Pro Arg Asn Lys Ser Ala 645 650 655 Asp Val Thr Ser Leu Ser Gly Ser Asp Thr Arg Lys Asn Ser Thr Lys 660 665 670 Gly Ser Leu Asn Pro Glu Asn Pro Val Gln Val Ser Met Asp His Leu 675 680 685 Thr Thr Arg Ile Tyr Asp Leu Leu Arg Leu His Ala Asn Ser Ser Arg 690 695 700 Cys Ser Thr Gly Cys Pro Arg Gly Ser Arg Asn Ile Lys Glu Ala Trp 705 710 715 720 Thr Ala Thr Glu Gln Leu Gln Phe Thr Val Tyr Ala Ala His Gly Ile 725 730 735 Ser Ser Asn Trp Val Ser Asn Tyr Glu Lys Tyr Tyr Leu Ile Cys Ser 740 745 750 Leu Ser His Asn Gly Lys Asp Leu Phe Lys Pro Ile Gln Ser Lys Lys 755 760 765 Val Gly Thr Tyr Lys Asn Phe Phe Tyr Leu Ile Lys Trp Asp Glu Leu 770 775 780 Ile Ile Phe Pro Ile Gln Ile Ser Gln Leu Pro Leu Glu Ser Val Leu 785 790 795 800 His Leu Thr Leu Phe Gly Val Leu Asn Gln Ser Ser Gly Ser Ser Pro 805 810 815 Asp Ser Asn Lys Gln Arg Lys Gly Pro Glu Ala Leu Gly Lys Val Ser 820 825 830 Leu Thr Leu Phe Asp Phe Lys Arg Phe Leu Thr Cys Gly Thr Lys Leu 835 840 845 Leu Tyr Leu Trp Thr Ser Ser His Thr Asn Ser Ile Pro Gly Ala Ile 850 855 860 Pro Lys Lys Ser Tyr Val Met Glu Arg Ile Val Leu Gln Val Asp Phe 865 870 875 880 Pro Ser Pro Ala Phe Asp Ile Ile Tyr Thr Ser Pro Gln Ile Asp Arg 885 890 895 Asn Ile Ile Gln Gln Asp Lys Leu Glu Thr Leu Glu Ser Asp Ile Lys 900 905 910 Gly Lys Leu Leu Asp Ile Ile His Arg Asp Ser Ser Phe Gly Leu Ser 915 920 925 Lys Glu Asp Lys Val Phe Leu Trp Glu Asn Arg Tyr Tyr Cys Leu Lys 930 935 940 His Pro Asn Cys Leu Pro Lys Ile Leu Ala Ser Ala Pro Asn Trp Lys 945 950 955 960 Trp Ala Asn Leu Ala Lys Thr Tyr Ser Leu Leu His Gln Trp Pro Pro 965 970 975 Leu Cys Pro Leu Ala Ala Leu Glu Leu Leu Asp Ala Lys Phe Ala Asp 980 985 990 Gln Gly Val Arg Ser Leu Ala Val Ser Trp Met Glu Ala Ile Ser Asp 995 1000 1005 Asp Glu Leu Ala Asp Leu Leu Pro Gln Phe Val Gln Ala Leu Lys Tyr 1010 1015 1020 Glu Ile Tyr Leu Asn Ser Ser Leu Val Arg Phe Leu Leu Ser Arg Ala 1025 1030 1035 1040 Leu Gly Asn Ile Gln Ile Ala His Ser Leu Tyr Trp Leu Leu Lys Asp 1045 1050 1055 Ala Leu His Asp Thr His Phe Gly Ser Arg Tyr Glu His Val Leu Gly 1060 1065 1070 Ala Leu Leu Ser Val Gly Gly Lys Gly Leu Arg Glu Glu Leu Ser Lys 1075 1080 1085 Gln Met Lys Leu Val Gln Leu Leu Gly Gly Val Ala Glu Lys Val Arg 1090 1095 1100 Gln Ala Ser Gly Ser Thr Arg Gln Val Val Leu Gln Lys Ser Met Glu 1105 1110 1115 1120 Arg Val Gln Ser Phe Phe Leu Arg Asn Lys Cys Arg Leu Pro Leu Lys 1125 1130 1135 Pro Ser Leu Val Ala Lys Glu Leu Asn Ile Lys Ser Cys Ser Phe Phe 1140 1145 1150 Ser Ser Asn Ala Met Pro Leu Lys Val Thr Met Val Asn Ala Asp Pro 1155 1160 1165 Leu Gly Glu Glu Ile Asn Val Met Phe Lys Val Gly Glu Asp Leu Arg 1170 1175 1180 Gln Asp Met Leu Ala Leu Gln Met Ile Lys Ile Met Asp Lys Ile Trp 1185 1190 1195 1200 Leu Lys Glu Gly Leu Asp Leu Arg Met Val Ile Phe Arg Cys Leu Ser 1205 1210 1215 Thr Gly Arg Asp Arg Gly Met Val Glu Leu Val Pro Ala Ser Asp Thr 1220 1225 1230 Leu Arg Lys Ile Gln Val Glu Tyr Gly Val Thr Gly Ser Phe Lys Asp 1235 1240 1245 Lys Pro Leu Ala Glu Trp Leu Arg Lys Tyr Asn Pro Ser Glu Glu Glu 1250 1255 1260 Tyr Glu Lys Ala Ser Glu Asn Phe Ile Tyr Ser Cys Ala Gly Cys Cys 1265 1270 1275 1280 Val Ala Thr Tyr Val Leu Gly Ile Cys Asp Arg His Asn Asp Asn Ile 1285 1290 1295 Met Leu Arg Ser Thr Gly His Met Phe His Ile Asp Phe Gly Lys Phe 1300 1305 1310 Leu Gly His Ala Gln Met Phe Gly Ser Phe Lys Arg Asp Arg Ala Pro 1315 1320 1325 Phe Val Leu Thr Ser Asp Met Ala Tyr Val Ile Asn Gly Gly Glu Lys 1330 1335 1340 Pro Thr Ile Arg Phe Gln Leu Phe Val Asp Leu Cys Cys Gln Ala Tyr 1345 1350 1355 1360 Asn Leu Ile Arg Lys Gln Thr Asn Leu Phe Leu Asn Leu Leu Ser Leu 1365 1370 1375 Met Ile Pro Ser Gly Leu Pro Glu Leu Thr Ser Ile Gln Asp Leu Lys 1380 1385 1390 Tyr Val Arg Asp Ala Leu Gln Pro Gln Thr Thr Asp Ala Glu Ala Thr 1395 1400 1405 Ile Phe Phe Thr Arg Leu Ile Glu Ser Ser Leu Gly Ser Ile Ala Thr 1410 1415 1420 Lys Phe Asn Phe Phe Ile His Asn Leu Ala Gln Leu Arg Phe Ser Gly 1425 1430 1435 1440 Leu Pro Ser Asn Asp Glu Pro Ile Leu Ser Phe Ser Pro Lys Thr Tyr 1445 1450 1455 Ser Phe Arg Gln Asp Gly Arg Ile Lys Glu Val Ser Val Phe Thr Tyr 1460 1465 1470 His Lys Lys Tyr Asn Pro Asp Lys His Tyr Ile Tyr Val Val Arg Ile 1475 1480 1485 Leu Arg Glu Gly His Leu Glu Pro Ser Phe Val Phe Arg Thr Phe Asp 1490 1495 1500 Glu Phe Gln Glu Leu His Asn Lys Leu Ser Ile Ile Phe Pro Leu Trp 1505 1510 1515 1520 Lys Leu Pro Gly Phe Pro Asn Arg Met Val Leu Gly Arg Thr His Ile 1525 1530 1535 Lys Asp Val Ala Ala Lys Arg Lys Ile Glu Leu Asn Ser Tyr Leu Gln 1540 1545 1550 Ser Leu Met Asn Ala Ser Thr Asp Val Ala Glu Cys Asp Leu Val Cys 1555 1560 1565 Thr Phe Phe His Pro Leu Leu Arg Asp Glu Lys Ala Glu Gly Ile Ala 1570 1575 1580 Arg Ser Ala Gly Ala Val Pro Phe Ser Pro Thr Leu Gly Gln Ile Gly 1585 1590 1595 1600 Gly Ala Val Lys Leu Ser Val Ser Tyr Arg Asn Gly Thr Leu Phe Ile 1605 1610 1615 Met Val Met His Ile Lys Asp Leu Val Thr Glu Asp Gly Ala Asp Pro 1620 1625 1630 Asn Pro Tyr Val Lys Thr Tyr Leu Leu Pro Asp Thr His Lys Thr Ser 1635 1640 1645 Lys Arg Lys Thr Lys Ile Ser Arg Lys Thr Arg Asn Pro Thr Phe Asn 1650 1655 1660 Glu Met Leu Val Tyr Ser Gly Tyr Ser Lys Glu Thr Leu Arg Gln Arg 1665 1670 1675 1680 Glu Leu Gln Leu Ser Val Leu Ser Ala Glu Ser Leu Arg Glu Asn Phe 1685 1690 1695 Phe Leu Gly Gly Ile Thr Leu Pro Leu Lys Asp Phe Asn Leu Ser Lys 1700 1705 1710 Glu Thr Val Lys Trp Tyr Gln Leu Thr Ala Ala Thr Tyr Leu 1715 1720 1725 4 amino acids amino acid linear protein not provided 31 Thr Ser Asp Phe 29 amino acids amino acid linear protein not provided 32 Ala Leu Glu Thr Arg Ser Tyr Lys Cys Val Arg Met Arg Thr Tyr Thr 5 10 15 His Leu Gly Thr Leu Tyr Asn Phe Ile Leu Trp Gln Pro 20 25 

What is claimed is:
 1. An isolated nucleic acid segment that encodes an amino acid sequence, which amino acid sequence is at least 90% identical to the amino acid sequence of SEQ ID NOs:28 or 30, wherein said nucleic acid segment encodes a polypeptide having phosphatidylinositol 3-kinase (PI3-kinase) activity, whereby said polypeptide phosphorylates the D3 hydroxyl of the inositol ring one or more of the following: phosphatidylinositol and phosphatidylinositol 4-phosphate; but said polypeptide does not phosphorylate the inositol ring of phosphatidylinositol 4,5-bisphosphate.
 2. The isolated nucleic acid segment according to claim 1, wherein said amino acid sequence is SEQ ID NOs: 28 or
 30. 3. The isolated nucleic acid segment according to claim 1 that is SEQ ID NOs: 27 or
 29. 4. The isolated nucleic acid segment according to claim 1, wherein said nucleic acid segment further comprises an additional nucleic acid sequence which encodes a heterologous protein, whereby the expression product of the nucleic acid segment is a fusion protein.
 5. An expression vector comprising the nucleic acid segment according to claim 1 or claim 4 operably linked to a promoter sequence.
 6. A recombinant host cell, wherein said host cell has been transformed or transfected with an expression vector according to claim
 5. 7. The recombinant host cell of claim 6, wherein said host cell is selected from the group consisting of bacterial, mammalian, plant, fungal, and insect cells.
 8. The recombinant host cell of claim 7, wherein said host cell is a COS-7 cell.
 9. A method for producing a polypeptide comprising: (a) culturing a host cell, wherein said host cell is according to claim 6, under conditions wherein the polypeptide encoded by the nucleic acid segment contained on the vector is expressed, and (b) recovering said polypeptide from the cultured host cell or its culture medium. 